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Diffstat (limited to 'packages/taler-wallet-core/src/crypto/primitives/nacl-fast.ts')
-rw-r--r--packages/taler-wallet-core/src/crypto/primitives/nacl-fast.ts1941
1 files changed, 1941 insertions, 0 deletions
diff --git a/packages/taler-wallet-core/src/crypto/primitives/nacl-fast.ts b/packages/taler-wallet-core/src/crypto/primitives/nacl-fast.ts
new file mode 100644
index 000000000..c2d40691a
--- /dev/null
+++ b/packages/taler-wallet-core/src/crypto/primitives/nacl-fast.ts
@@ -0,0 +1,1941 @@
+// Ported in 2014 by Dmitry Chestnykh and Devi Mandiri.
+// TypeScript port in 2019 by Florian Dold.
+// Public domain.
+//
+// Implementation derived from TweetNaCl version 20140427.
+// See for details: http://tweetnacl.cr.yp.to/
+
+const gf = function (init: number[] = []): Float64Array {
+ const r = new Float64Array(16);
+ if (init) for (let i = 0; i < init.length; i++) r[i] = init[i];
+ return r;
+};
+
+// Pluggable, initialized in high-level API below.
+let randombytes = function (x: Uint8Array, n: number): void {
+ throw new Error("no PRNG");
+};
+
+const _9 = new Uint8Array(32);
+_9[0] = 9;
+
+// prettier-ignore
+const gf0 = gf();
+const gf1 = gf([1]);
+const _121665 = gf([0xdb41, 1]);
+const D = gf([
+ 0x78a3,
+ 0x1359,
+ 0x4dca,
+ 0x75eb,
+ 0xd8ab,
+ 0x4141,
+ 0x0a4d,
+ 0x0070,
+ 0xe898,
+ 0x7779,
+ 0x4079,
+ 0x8cc7,
+ 0xfe73,
+ 0x2b6f,
+ 0x6cee,
+ 0x5203,
+]);
+const D2 = gf([
+ 0xf159,
+ 0x26b2,
+ 0x9b94,
+ 0xebd6,
+ 0xb156,
+ 0x8283,
+ 0x149a,
+ 0x00e0,
+ 0xd130,
+ 0xeef3,
+ 0x80f2,
+ 0x198e,
+ 0xfce7,
+ 0x56df,
+ 0xd9dc,
+ 0x2406,
+]);
+const X = gf([
+ 0xd51a,
+ 0x8f25,
+ 0x2d60,
+ 0xc956,
+ 0xa7b2,
+ 0x9525,
+ 0xc760,
+ 0x692c,
+ 0xdc5c,
+ 0xfdd6,
+ 0xe231,
+ 0xc0a4,
+ 0x53fe,
+ 0xcd6e,
+ 0x36d3,
+ 0x2169,
+]);
+const Y = gf([
+ 0x6658,
+ 0x6666,
+ 0x6666,
+ 0x6666,
+ 0x6666,
+ 0x6666,
+ 0x6666,
+ 0x6666,
+ 0x6666,
+ 0x6666,
+ 0x6666,
+ 0x6666,
+ 0x6666,
+ 0x6666,
+ 0x6666,
+ 0x6666,
+]);
+const I = gf([
+ 0xa0b0,
+ 0x4a0e,
+ 0x1b27,
+ 0xc4ee,
+ 0xe478,
+ 0xad2f,
+ 0x1806,
+ 0x2f43,
+ 0xd7a7,
+ 0x3dfb,
+ 0x0099,
+ 0x2b4d,
+ 0xdf0b,
+ 0x4fc1,
+ 0x2480,
+ 0x2b83,
+]);
+
+function ts64(x: Uint8Array, i: number, h: number, l: number): void {
+ x[i] = (h >> 24) & 0xff;
+ x[i + 1] = (h >> 16) & 0xff;
+ x[i + 2] = (h >> 8) & 0xff;
+ x[i + 3] = h & 0xff;
+ x[i + 4] = (l >> 24) & 0xff;
+ x[i + 5] = (l >> 16) & 0xff;
+ x[i + 6] = (l >> 8) & 0xff;
+ x[i + 7] = l & 0xff;
+}
+
+function vn(
+ x: Uint8Array,
+ xi: number,
+ y: Uint8Array,
+ yi: number,
+ n: number,
+): number {
+ let i,
+ d = 0;
+ for (i = 0; i < n; i++) d |= x[xi + i] ^ y[yi + i];
+ return (1 & ((d - 1) >>> 8)) - 1;
+}
+
+function crypto_verify_32(
+ x: Uint8Array,
+ xi: number,
+ y: Uint8Array,
+ yi: number,
+): number {
+ return vn(x, xi, y, yi, 32);
+}
+
+function set25519(r: Float64Array, a: Float64Array): void {
+ let i;
+ for (i = 0; i < 16; i++) r[i] = a[i] | 0;
+}
+
+function car25519(o: Float64Array): void {
+ let i,
+ v,
+ c = 1;
+ for (i = 0; i < 16; i++) {
+ v = o[i] + c + 65535;
+ c = Math.floor(v / 65536);
+ o[i] = v - c * 65536;
+ }
+ o[0] += c - 1 + 37 * (c - 1);
+}
+
+function sel25519(p: Float64Array, q: Float64Array, b: number): void {
+ let t;
+ const c = ~(b - 1);
+ for (let i = 0; i < 16; i++) {
+ t = c & (p[i] ^ q[i]);
+ p[i] ^= t;
+ q[i] ^= t;
+ }
+}
+
+function pack25519(o: Uint8Array, n: Float64Array): void {
+ let i, j, b;
+ const m = gf(),
+ t = gf();
+ for (i = 0; i < 16; i++) t[i] = n[i];
+ car25519(t);
+ car25519(t);
+ car25519(t);
+ for (j = 0; j < 2; j++) {
+ m[0] = t[0] - 0xffed;
+ for (i = 1; i < 15; i++) {
+ m[i] = t[i] - 0xffff - ((m[i - 1] >> 16) & 1);
+ m[i - 1] &= 0xffff;
+ }
+ m[15] = t[15] - 0x7fff - ((m[14] >> 16) & 1);
+ b = (m[15] >> 16) & 1;
+ m[14] &= 0xffff;
+ sel25519(t, m, 1 - b);
+ }
+ for (i = 0; i < 16; i++) {
+ o[2 * i] = t[i] & 0xff;
+ o[2 * i + 1] = t[i] >> 8;
+ }
+}
+
+function neq25519(a: Float64Array, b: Float64Array): number {
+ const c = new Uint8Array(32),
+ d = new Uint8Array(32);
+ pack25519(c, a);
+ pack25519(d, b);
+ return crypto_verify_32(c, 0, d, 0);
+}
+
+function par25519(a: Float64Array): number {
+ const d = new Uint8Array(32);
+ pack25519(d, a);
+ return d[0] & 1;
+}
+
+function unpack25519(o: Float64Array, n: Uint8Array): void {
+ let i;
+ for (i = 0; i < 16; i++) o[i] = n[2 * i] + (n[2 * i + 1] << 8);
+ o[15] &= 0x7fff;
+}
+
+function A(o: Float64Array, a: Float64Array, b: Float64Array): void {
+ for (let i = 0; i < 16; i++) o[i] = a[i] + b[i];
+}
+
+function Z(o: Float64Array, a: Float64Array, b: Float64Array): void {
+ for (let i = 0; i < 16; i++) o[i] = a[i] - b[i];
+}
+
+function M(o: Float64Array, a: Float64Array, b: Float64Array): void {
+ let v,
+ c,
+ t0 = 0,
+ t1 = 0,
+ t2 = 0,
+ t3 = 0,
+ t4 = 0,
+ t5 = 0,
+ t6 = 0,
+ t7 = 0,
+ t8 = 0,
+ t9 = 0,
+ t10 = 0,
+ t11 = 0,
+ t12 = 0,
+ t13 = 0,
+ t14 = 0,
+ t15 = 0,
+ t16 = 0,
+ t17 = 0,
+ t18 = 0,
+ t19 = 0,
+ t20 = 0,
+ t21 = 0,
+ t22 = 0,
+ t23 = 0,
+ t24 = 0,
+ t25 = 0,
+ t26 = 0,
+ t27 = 0,
+ t28 = 0,
+ t29 = 0,
+ t30 = 0;
+ const b0 = b[0],
+ b1 = b[1],
+ b2 = b[2],
+ b3 = b[3],
+ b4 = b[4],
+ b5 = b[5],
+ b6 = b[6],
+ b7 = b[7],
+ b8 = b[8],
+ b9 = b[9],
+ b10 = b[10],
+ b11 = b[11],
+ b12 = b[12],
+ b13 = b[13],
+ b14 = b[14],
+ b15 = b[15];
+
+ v = a[0];
+ t0 += v * b0;
+ t1 += v * b1;
+ t2 += v * b2;
+ t3 += v * b3;
+ t4 += v * b4;
+ t5 += v * b5;
+ t6 += v * b6;
+ t7 += v * b7;
+ t8 += v * b8;
+ t9 += v * b9;
+ t10 += v * b10;
+ t11 += v * b11;
+ t12 += v * b12;
+ t13 += v * b13;
+ t14 += v * b14;
+ t15 += v * b15;
+ v = a[1];
+ t1 += v * b0;
+ t2 += v * b1;
+ t3 += v * b2;
+ t4 += v * b3;
+ t5 += v * b4;
+ t6 += v * b5;
+ t7 += v * b6;
+ t8 += v * b7;
+ t9 += v * b8;
+ t10 += v * b9;
+ t11 += v * b10;
+ t12 += v * b11;
+ t13 += v * b12;
+ t14 += v * b13;
+ t15 += v * b14;
+ t16 += v * b15;
+ v = a[2];
+ t2 += v * b0;
+ t3 += v * b1;
+ t4 += v * b2;
+ t5 += v * b3;
+ t6 += v * b4;
+ t7 += v * b5;
+ t8 += v * b6;
+ t9 += v * b7;
+ t10 += v * b8;
+ t11 += v * b9;
+ t12 += v * b10;
+ t13 += v * b11;
+ t14 += v * b12;
+ t15 += v * b13;
+ t16 += v * b14;
+ t17 += v * b15;
+ v = a[3];
+ t3 += v * b0;
+ t4 += v * b1;
+ t5 += v * b2;
+ t6 += v * b3;
+ t7 += v * b4;
+ t8 += v * b5;
+ t9 += v * b6;
+ t10 += v * b7;
+ t11 += v * b8;
+ t12 += v * b9;
+ t13 += v * b10;
+ t14 += v * b11;
+ t15 += v * b12;
+ t16 += v * b13;
+ t17 += v * b14;
+ t18 += v * b15;
+ v = a[4];
+ t4 += v * b0;
+ t5 += v * b1;
+ t6 += v * b2;
+ t7 += v * b3;
+ t8 += v * b4;
+ t9 += v * b5;
+ t10 += v * b6;
+ t11 += v * b7;
+ t12 += v * b8;
+ t13 += v * b9;
+ t14 += v * b10;
+ t15 += v * b11;
+ t16 += v * b12;
+ t17 += v * b13;
+ t18 += v * b14;
+ t19 += v * b15;
+ v = a[5];
+ t5 += v * b0;
+ t6 += v * b1;
+ t7 += v * b2;
+ t8 += v * b3;
+ t9 += v * b4;
+ t10 += v * b5;
+ t11 += v * b6;
+ t12 += v * b7;
+ t13 += v * b8;
+ t14 += v * b9;
+ t15 += v * b10;
+ t16 += v * b11;
+ t17 += v * b12;
+ t18 += v * b13;
+ t19 += v * b14;
+ t20 += v * b15;
+ v = a[6];
+ t6 += v * b0;
+ t7 += v * b1;
+ t8 += v * b2;
+ t9 += v * b3;
+ t10 += v * b4;
+ t11 += v * b5;
+ t12 += v * b6;
+ t13 += v * b7;
+ t14 += v * b8;
+ t15 += v * b9;
+ t16 += v * b10;
+ t17 += v * b11;
+ t18 += v * b12;
+ t19 += v * b13;
+ t20 += v * b14;
+ t21 += v * b15;
+ v = a[7];
+ t7 += v * b0;
+ t8 += v * b1;
+ t9 += v * b2;
+ t10 += v * b3;
+ t11 += v * b4;
+ t12 += v * b5;
+ t13 += v * b6;
+ t14 += v * b7;
+ t15 += v * b8;
+ t16 += v * b9;
+ t17 += v * b10;
+ t18 += v * b11;
+ t19 += v * b12;
+ t20 += v * b13;
+ t21 += v * b14;
+ t22 += v * b15;
+ v = a[8];
+ t8 += v * b0;
+ t9 += v * b1;
+ t10 += v * b2;
+ t11 += v * b3;
+ t12 += v * b4;
+ t13 += v * b5;
+ t14 += v * b6;
+ t15 += v * b7;
+ t16 += v * b8;
+ t17 += v * b9;
+ t18 += v * b10;
+ t19 += v * b11;
+ t20 += v * b12;
+ t21 += v * b13;
+ t22 += v * b14;
+ t23 += v * b15;
+ v = a[9];
+ t9 += v * b0;
+ t10 += v * b1;
+ t11 += v * b2;
+ t12 += v * b3;
+ t13 += v * b4;
+ t14 += v * b5;
+ t15 += v * b6;
+ t16 += v * b7;
+ t17 += v * b8;
+ t18 += v * b9;
+ t19 += v * b10;
+ t20 += v * b11;
+ t21 += v * b12;
+ t22 += v * b13;
+ t23 += v * b14;
+ t24 += v * b15;
+ v = a[10];
+ t10 += v * b0;
+ t11 += v * b1;
+ t12 += v * b2;
+ t13 += v * b3;
+ t14 += v * b4;
+ t15 += v * b5;
+ t16 += v * b6;
+ t17 += v * b7;
+ t18 += v * b8;
+ t19 += v * b9;
+ t20 += v * b10;
+ t21 += v * b11;
+ t22 += v * b12;
+ t23 += v * b13;
+ t24 += v * b14;
+ t25 += v * b15;
+ v = a[11];
+ t11 += v * b0;
+ t12 += v * b1;
+ t13 += v * b2;
+ t14 += v * b3;
+ t15 += v * b4;
+ t16 += v * b5;
+ t17 += v * b6;
+ t18 += v * b7;
+ t19 += v * b8;
+ t20 += v * b9;
+ t21 += v * b10;
+ t22 += v * b11;
+ t23 += v * b12;
+ t24 += v * b13;
+ t25 += v * b14;
+ t26 += v * b15;
+ v = a[12];
+ t12 += v * b0;
+ t13 += v * b1;
+ t14 += v * b2;
+ t15 += v * b3;
+ t16 += v * b4;
+ t17 += v * b5;
+ t18 += v * b6;
+ t19 += v * b7;
+ t20 += v * b8;
+ t21 += v * b9;
+ t22 += v * b10;
+ t23 += v * b11;
+ t24 += v * b12;
+ t25 += v * b13;
+ t26 += v * b14;
+ t27 += v * b15;
+ v = a[13];
+ t13 += v * b0;
+ t14 += v * b1;
+ t15 += v * b2;
+ t16 += v * b3;
+ t17 += v * b4;
+ t18 += v * b5;
+ t19 += v * b6;
+ t20 += v * b7;
+ t21 += v * b8;
+ t22 += v * b9;
+ t23 += v * b10;
+ t24 += v * b11;
+ t25 += v * b12;
+ t26 += v * b13;
+ t27 += v * b14;
+ t28 += v * b15;
+ v = a[14];
+ t14 += v * b0;
+ t15 += v * b1;
+ t16 += v * b2;
+ t17 += v * b3;
+ t18 += v * b4;
+ t19 += v * b5;
+ t20 += v * b6;
+ t21 += v * b7;
+ t22 += v * b8;
+ t23 += v * b9;
+ t24 += v * b10;
+ t25 += v * b11;
+ t26 += v * b12;
+ t27 += v * b13;
+ t28 += v * b14;
+ t29 += v * b15;
+ v = a[15];
+ t15 += v * b0;
+ t16 += v * b1;
+ t17 += v * b2;
+ t18 += v * b3;
+ t19 += v * b4;
+ t20 += v * b5;
+ t21 += v * b6;
+ t22 += v * b7;
+ t23 += v * b8;
+ t24 += v * b9;
+ t25 += v * b10;
+ t26 += v * b11;
+ t27 += v * b12;
+ t28 += v * b13;
+ t29 += v * b14;
+ t30 += v * b15;
+
+ t0 += 38 * t16;
+ t1 += 38 * t17;
+ t2 += 38 * t18;
+ t3 += 38 * t19;
+ t4 += 38 * t20;
+ t5 += 38 * t21;
+ t6 += 38 * t22;
+ t7 += 38 * t23;
+ t8 += 38 * t24;
+ t9 += 38 * t25;
+ t10 += 38 * t26;
+ t11 += 38 * t27;
+ t12 += 38 * t28;
+ t13 += 38 * t29;
+ t14 += 38 * t30;
+ // t15 left as is
+
+ // first car
+ c = 1;
+ v = t0 + c + 65535;
+ c = Math.floor(v / 65536);
+ t0 = v - c * 65536;
+ v = t1 + c + 65535;
+ c = Math.floor(v / 65536);
+ t1 = v - c * 65536;
+ v = t2 + c + 65535;
+ c = Math.floor(v / 65536);
+ t2 = v - c * 65536;
+ v = t3 + c + 65535;
+ c = Math.floor(v / 65536);
+ t3 = v - c * 65536;
+ v = t4 + c + 65535;
+ c = Math.floor(v / 65536);
+ t4 = v - c * 65536;
+ v = t5 + c + 65535;
+ c = Math.floor(v / 65536);
+ t5 = v - c * 65536;
+ v = t6 + c + 65535;
+ c = Math.floor(v / 65536);
+ t6 = v - c * 65536;
+ v = t7 + c + 65535;
+ c = Math.floor(v / 65536);
+ t7 = v - c * 65536;
+ v = t8 + c + 65535;
+ c = Math.floor(v / 65536);
+ t8 = v - c * 65536;
+ v = t9 + c + 65535;
+ c = Math.floor(v / 65536);
+ t9 = v - c * 65536;
+ v = t10 + c + 65535;
+ c = Math.floor(v / 65536);
+ t10 = v - c * 65536;
+ v = t11 + c + 65535;
+ c = Math.floor(v / 65536);
+ t11 = v - c * 65536;
+ v = t12 + c + 65535;
+ c = Math.floor(v / 65536);
+ t12 = v - c * 65536;
+ v = t13 + c + 65535;
+ c = Math.floor(v / 65536);
+ t13 = v - c * 65536;
+ v = t14 + c + 65535;
+ c = Math.floor(v / 65536);
+ t14 = v - c * 65536;
+ v = t15 + c + 65535;
+ c = Math.floor(v / 65536);
+ t15 = v - c * 65536;
+ t0 += c - 1 + 37 * (c - 1);
+
+ // second car
+ c = 1;
+ v = t0 + c + 65535;
+ c = Math.floor(v / 65536);
+ t0 = v - c * 65536;
+ v = t1 + c + 65535;
+ c = Math.floor(v / 65536);
+ t1 = v - c * 65536;
+ v = t2 + c + 65535;
+ c = Math.floor(v / 65536);
+ t2 = v - c * 65536;
+ v = t3 + c + 65535;
+ c = Math.floor(v / 65536);
+ t3 = v - c * 65536;
+ v = t4 + c + 65535;
+ c = Math.floor(v / 65536);
+ t4 = v - c * 65536;
+ v = t5 + c + 65535;
+ c = Math.floor(v / 65536);
+ t5 = v - c * 65536;
+ v = t6 + c + 65535;
+ c = Math.floor(v / 65536);
+ t6 = v - c * 65536;
+ v = t7 + c + 65535;
+ c = Math.floor(v / 65536);
+ t7 = v - c * 65536;
+ v = t8 + c + 65535;
+ c = Math.floor(v / 65536);
+ t8 = v - c * 65536;
+ v = t9 + c + 65535;
+ c = Math.floor(v / 65536);
+ t9 = v - c * 65536;
+ v = t10 + c + 65535;
+ c = Math.floor(v / 65536);
+ t10 = v - c * 65536;
+ v = t11 + c + 65535;
+ c = Math.floor(v / 65536);
+ t11 = v - c * 65536;
+ v = t12 + c + 65535;
+ c = Math.floor(v / 65536);
+ t12 = v - c * 65536;
+ v = t13 + c + 65535;
+ c = Math.floor(v / 65536);
+ t13 = v - c * 65536;
+ v = t14 + c + 65535;
+ c = Math.floor(v / 65536);
+ t14 = v - c * 65536;
+ v = t15 + c + 65535;
+ c = Math.floor(v / 65536);
+ t15 = v - c * 65536;
+ t0 += c - 1 + 37 * (c - 1);
+
+ o[0] = t0;
+ o[1] = t1;
+ o[2] = t2;
+ o[3] = t3;
+ o[4] = t4;
+ o[5] = t5;
+ o[6] = t6;
+ o[7] = t7;
+ o[8] = t8;
+ o[9] = t9;
+ o[10] = t10;
+ o[11] = t11;
+ o[12] = t12;
+ o[13] = t13;
+ o[14] = t14;
+ o[15] = t15;
+}
+
+function S(o: Float64Array, a: Float64Array): void {
+ M(o, a, a);
+}
+
+function inv25519(o: Float64Array, i: Float64Array): void {
+ const c = gf();
+ let a;
+ for (a = 0; a < 16; a++) c[a] = i[a];
+ for (a = 253; a >= 0; a--) {
+ S(c, c);
+ if (a !== 2 && a !== 4) M(c, c, i);
+ }
+ for (a = 0; a < 16; a++) o[a] = c[a];
+}
+
+function pow2523(o: Float64Array, i: Float64Array): void {
+ const c = gf();
+ let a;
+ for (a = 0; a < 16; a++) c[a] = i[a];
+ for (a = 250; a >= 0; a--) {
+ S(c, c);
+ if (a !== 1) M(c, c, i);
+ }
+ for (a = 0; a < 16; a++) o[a] = c[a];
+}
+
+function crypto_scalarmult(
+ q: Uint8Array,
+ n: Uint8Array,
+ p: Uint8Array,
+): number {
+ const z = new Uint8Array(32);
+ const x = new Float64Array(80);
+ let r;
+ let i;
+ const a = gf(),
+ b = gf(),
+ c = gf(),
+ d = gf(),
+ e = gf(),
+ f = gf();
+ for (i = 0; i < 31; i++) z[i] = n[i];
+ z[31] = (n[31] & 127) | 64;
+ z[0] &= 248;
+ unpack25519(x, p);
+ for (i = 0; i < 16; i++) {
+ b[i] = x[i];
+ d[i] = a[i] = c[i] = 0;
+ }
+ a[0] = d[0] = 1;
+ for (i = 254; i >= 0; --i) {
+ r = (z[i >>> 3] >>> (i & 7)) & 1;
+ sel25519(a, b, r);
+ sel25519(c, d, r);
+ A(e, a, c);
+ Z(a, a, c);
+ A(c, b, d);
+ Z(b, b, d);
+ S(d, e);
+ S(f, a);
+ M(a, c, a);
+ M(c, b, e);
+ A(e, a, c);
+ Z(a, a, c);
+ S(b, a);
+ Z(c, d, f);
+ M(a, c, _121665);
+ A(a, a, d);
+ M(c, c, a);
+ M(a, d, f);
+ M(d, b, x);
+ S(b, e);
+ sel25519(a, b, r);
+ sel25519(c, d, r);
+ }
+ for (i = 0; i < 16; i++) {
+ x[i + 16] = a[i];
+ x[i + 32] = c[i];
+ x[i + 48] = b[i];
+ x[i + 64] = d[i];
+ }
+ const x32 = x.subarray(32);
+ const x16 = x.subarray(16);
+ inv25519(x32, x32);
+ M(x16, x16, x32);
+ pack25519(q, x16);
+ return 0;
+}
+
+function crypto_scalarmult_base(q: Uint8Array, n: Uint8Array): number {
+ return crypto_scalarmult(q, n, _9);
+}
+
+// prettier-ignore
+const K = [
+ 0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
+ 0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
+ 0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
+ 0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
+ 0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
+ 0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
+ 0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
+ 0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
+ 0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
+ 0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
+ 0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
+ 0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
+ 0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
+ 0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
+ 0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
+ 0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
+ 0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
+ 0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
+ 0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
+ 0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
+ 0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
+ 0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
+ 0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
+ 0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
+ 0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
+ 0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
+ 0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
+ 0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
+ 0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
+ 0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
+ 0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
+ 0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
+ 0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
+ 0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
+ 0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
+ 0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
+ 0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
+ 0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
+ 0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
+ 0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
+];
+
+function crypto_hashblocks_hl(
+ hh: Int32Array,
+ hl: Int32Array,
+ m: Uint8Array,
+ n: number,
+): number {
+ const wh = new Int32Array(16),
+ wl = new Int32Array(16);
+ let bh0,
+ bh1,
+ bh2,
+ bh3,
+ bh4,
+ bh5,
+ bh6,
+ bh7,
+ bl0,
+ bl1,
+ bl2,
+ bl3,
+ bl4,
+ bl5,
+ bl6,
+ bl7,
+ th,
+ tl,
+ i,
+ j,
+ h,
+ l,
+ a,
+ b,
+ c,
+ d;
+
+ let ah0 = hh[0],
+ ah1 = hh[1],
+ ah2 = hh[2],
+ ah3 = hh[3],
+ ah4 = hh[4],
+ ah5 = hh[5],
+ ah6 = hh[6],
+ ah7 = hh[7],
+ al0 = hl[0],
+ al1 = hl[1],
+ al2 = hl[2],
+ al3 = hl[3],
+ al4 = hl[4],
+ al5 = hl[5],
+ al6 = hl[6],
+ al7 = hl[7];
+
+ let pos = 0;
+ while (n >= 128) {
+ for (i = 0; i < 16; i++) {
+ j = 8 * i + pos;
+ wh[i] = (m[j + 0] << 24) | (m[j + 1] << 16) | (m[j + 2] << 8) | m[j + 3];
+ wl[i] = (m[j + 4] << 24) | (m[j + 5] << 16) | (m[j + 6] << 8) | m[j + 7];
+ }
+ for (i = 0; i < 80; i++) {
+ bh0 = ah0;
+ bh1 = ah1;
+ bh2 = ah2;
+ bh3 = ah3;
+ bh4 = ah4;
+ bh5 = ah5;
+ bh6 = ah6;
+ bh7 = ah7;
+
+ bl0 = al0;
+ bl1 = al1;
+ bl2 = al2;
+ bl3 = al3;
+ bl4 = al4;
+ bl5 = al5;
+ bl6 = al6;
+ bl7 = al7;
+
+ // add
+ h = ah7;
+ l = al7;
+
+ a = l & 0xffff;
+ b = l >>> 16;
+ c = h & 0xffff;
+ d = h >>> 16;
+
+ // Sigma1
+ h =
+ ((ah4 >>> 14) | (al4 << (32 - 14))) ^
+ ((ah4 >>> 18) | (al4 << (32 - 18))) ^
+ ((al4 >>> (41 - 32)) | (ah4 << (32 - (41 - 32))));
+ l =
+ ((al4 >>> 14) | (ah4 << (32 - 14))) ^
+ ((al4 >>> 18) | (ah4 << (32 - 18))) ^
+ ((ah4 >>> (41 - 32)) | (al4 << (32 - (41 - 32))));
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ // Ch
+ h = (ah4 & ah5) ^ (~ah4 & ah6);
+ l = (al4 & al5) ^ (~al4 & al6);
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ // K
+ h = K[i * 2];
+ l = K[i * 2 + 1];
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ // w
+ h = wh[i % 16];
+ l = wl[i % 16];
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ b += a >>> 16;
+ c += b >>> 16;
+ d += c >>> 16;
+
+ th = (c & 0xffff) | (d << 16);
+ tl = (a & 0xffff) | (b << 16);
+
+ // add
+ h = th;
+ l = tl;
+
+ a = l & 0xffff;
+ b = l >>> 16;
+ c = h & 0xffff;
+ d = h >>> 16;
+
+ // Sigma0
+ h =
+ ((ah0 >>> 28) | (al0 << (32 - 28))) ^
+ ((al0 >>> (34 - 32)) | (ah0 << (32 - (34 - 32)))) ^
+ ((al0 >>> (39 - 32)) | (ah0 << (32 - (39 - 32))));
+ l =
+ ((al0 >>> 28) | (ah0 << (32 - 28))) ^
+ ((ah0 >>> (34 - 32)) | (al0 << (32 - (34 - 32)))) ^
+ ((ah0 >>> (39 - 32)) | (al0 << (32 - (39 - 32))));
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ // Maj
+ h = (ah0 & ah1) ^ (ah0 & ah2) ^ (ah1 & ah2);
+ l = (al0 & al1) ^ (al0 & al2) ^ (al1 & al2);
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ b += a >>> 16;
+ c += b >>> 16;
+ d += c >>> 16;
+
+ bh7 = (c & 0xffff) | (d << 16);
+ bl7 = (a & 0xffff) | (b << 16);
+
+ // add
+ h = bh3;
+ l = bl3;
+
+ a = l & 0xffff;
+ b = l >>> 16;
+ c = h & 0xffff;
+ d = h >>> 16;
+
+ h = th;
+ l = tl;
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ b += a >>> 16;
+ c += b >>> 16;
+ d += c >>> 16;
+
+ bh3 = (c & 0xffff) | (d << 16);
+ bl3 = (a & 0xffff) | (b << 16);
+
+ ah1 = bh0;
+ ah2 = bh1;
+ ah3 = bh2;
+ ah4 = bh3;
+ ah5 = bh4;
+ ah6 = bh5;
+ ah7 = bh6;
+ ah0 = bh7;
+
+ al1 = bl0;
+ al2 = bl1;
+ al3 = bl2;
+ al4 = bl3;
+ al5 = bl4;
+ al6 = bl5;
+ al7 = bl6;
+ al0 = bl7;
+
+ if (i % 16 === 15) {
+ for (j = 0; j < 16; j++) {
+ // add
+ h = wh[j];
+ l = wl[j];
+
+ a = l & 0xffff;
+ b = l >>> 16;
+ c = h & 0xffff;
+ d = h >>> 16;
+
+ h = wh[(j + 9) % 16];
+ l = wl[(j + 9) % 16];
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ // sigma0
+ th = wh[(j + 1) % 16];
+ tl = wl[(j + 1) % 16];
+ h =
+ ((th >>> 1) | (tl << (32 - 1))) ^
+ ((th >>> 8) | (tl << (32 - 8))) ^
+ (th >>> 7);
+ l =
+ ((tl >>> 1) | (th << (32 - 1))) ^
+ ((tl >>> 8) | (th << (32 - 8))) ^
+ ((tl >>> 7) | (th << (32 - 7)));
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ // sigma1
+ th = wh[(j + 14) % 16];
+ tl = wl[(j + 14) % 16];
+ h =
+ ((th >>> 19) | (tl << (32 - 19))) ^
+ ((tl >>> (61 - 32)) | (th << (32 - (61 - 32)))) ^
+ (th >>> 6);
+ l =
+ ((tl >>> 19) | (th << (32 - 19))) ^
+ ((th >>> (61 - 32)) | (tl << (32 - (61 - 32)))) ^
+ ((tl >>> 6) | (th << (32 - 6)));
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ b += a >>> 16;
+ c += b >>> 16;
+ d += c >>> 16;
+
+ wh[j] = (c & 0xffff) | (d << 16);
+ wl[j] = (a & 0xffff) | (b << 16);
+ }
+ }
+ }
+
+ // add
+ h = ah0;
+ l = al0;
+
+ a = l & 0xffff;
+ b = l >>> 16;
+ c = h & 0xffff;
+ d = h >>> 16;
+
+ h = hh[0];
+ l = hl[0];
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ b += a >>> 16;
+ c += b >>> 16;
+ d += c >>> 16;
+
+ hh[0] = ah0 = (c & 0xffff) | (d << 16);
+ hl[0] = al0 = (a & 0xffff) | (b << 16);
+
+ h = ah1;
+ l = al1;
+
+ a = l & 0xffff;
+ b = l >>> 16;
+ c = h & 0xffff;
+ d = h >>> 16;
+
+ h = hh[1];
+ l = hl[1];
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ b += a >>> 16;
+ c += b >>> 16;
+ d += c >>> 16;
+
+ hh[1] = ah1 = (c & 0xffff) | (d << 16);
+ hl[1] = al1 = (a & 0xffff) | (b << 16);
+
+ h = ah2;
+ l = al2;
+
+ a = l & 0xffff;
+ b = l >>> 16;
+ c = h & 0xffff;
+ d = h >>> 16;
+
+ h = hh[2];
+ l = hl[2];
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ b += a >>> 16;
+ c += b >>> 16;
+ d += c >>> 16;
+
+ hh[2] = ah2 = (c & 0xffff) | (d << 16);
+ hl[2] = al2 = (a & 0xffff) | (b << 16);
+
+ h = ah3;
+ l = al3;
+
+ a = l & 0xffff;
+ b = l >>> 16;
+ c = h & 0xffff;
+ d = h >>> 16;
+
+ h = hh[3];
+ l = hl[3];
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ b += a >>> 16;
+ c += b >>> 16;
+ d += c >>> 16;
+
+ hh[3] = ah3 = (c & 0xffff) | (d << 16);
+ hl[3] = al3 = (a & 0xffff) | (b << 16);
+
+ h = ah4;
+ l = al4;
+
+ a = l & 0xffff;
+ b = l >>> 16;
+ c = h & 0xffff;
+ d = h >>> 16;
+
+ h = hh[4];
+ l = hl[4];
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ b += a >>> 16;
+ c += b >>> 16;
+ d += c >>> 16;
+
+ hh[4] = ah4 = (c & 0xffff) | (d << 16);
+ hl[4] = al4 = (a & 0xffff) | (b << 16);
+
+ h = ah5;
+ l = al5;
+
+ a = l & 0xffff;
+ b = l >>> 16;
+ c = h & 0xffff;
+ d = h >>> 16;
+
+ h = hh[5];
+ l = hl[5];
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ b += a >>> 16;
+ c += b >>> 16;
+ d += c >>> 16;
+
+ hh[5] = ah5 = (c & 0xffff) | (d << 16);
+ hl[5] = al5 = (a & 0xffff) | (b << 16);
+
+ h = ah6;
+ l = al6;
+
+ a = l & 0xffff;
+ b = l >>> 16;
+ c = h & 0xffff;
+ d = h >>> 16;
+
+ h = hh[6];
+ l = hl[6];
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ b += a >>> 16;
+ c += b >>> 16;
+ d += c >>> 16;
+
+ hh[6] = ah6 = (c & 0xffff) | (d << 16);
+ hl[6] = al6 = (a & 0xffff) | (b << 16);
+
+ h = ah7;
+ l = al7;
+
+ a = l & 0xffff;
+ b = l >>> 16;
+ c = h & 0xffff;
+ d = h >>> 16;
+
+ h = hh[7];
+ l = hl[7];
+
+ a += l & 0xffff;
+ b += l >>> 16;
+ c += h & 0xffff;
+ d += h >>> 16;
+
+ b += a >>> 16;
+ c += b >>> 16;
+ d += c >>> 16;
+
+ hh[7] = ah7 = (c & 0xffff) | (d << 16);
+ hl[7] = al7 = (a & 0xffff) | (b << 16);
+
+ pos += 128;
+ n -= 128;
+ }
+
+ return n;
+}
+
+function crypto_hash(out: Uint8Array, m: Uint8Array, n: number): number {
+ const hh = new Int32Array(8);
+ const hl = new Int32Array(8);
+ const x = new Uint8Array(256);
+ const b = n;
+
+ hh[0] = 0x6a09e667;
+ hh[1] = 0xbb67ae85;
+ hh[2] = 0x3c6ef372;
+ hh[3] = 0xa54ff53a;
+ hh[4] = 0x510e527f;
+ hh[5] = 0x9b05688c;
+ hh[6] = 0x1f83d9ab;
+ hh[7] = 0x5be0cd19;
+
+ hl[0] = 0xf3bcc908;
+ hl[1] = 0x84caa73b;
+ hl[2] = 0xfe94f82b;
+ hl[3] = 0x5f1d36f1;
+ hl[4] = 0xade682d1;
+ hl[5] = 0x2b3e6c1f;
+ hl[6] = 0xfb41bd6b;
+ hl[7] = 0x137e2179;
+
+ crypto_hashblocks_hl(hh, hl, m, n);
+ n %= 128;
+
+ for (let i = 0; i < n; i++) x[i] = m[b - n + i];
+ x[n] = 128;
+
+ n = 256 - 128 * (n < 112 ? 1 : 0);
+ x[n - 9] = 0;
+ ts64(x, n - 8, (b / 0x20000000) | 0, b << 3);
+ crypto_hashblocks_hl(hh, hl, x, n);
+
+ for (let i = 0; i < 8; i++) ts64(out, 8 * i, hh[i], hl[i]);
+
+ return 0;
+}
+
+/**
+ * Incremental version of crypto_hash.
+ */
+export class HashState {
+ private hh = new Int32Array(8);
+ private hl = new Int32Array(8);
+
+ private next = new Uint8Array(128);
+ private p = 0;
+ private total = 0;
+
+ constructor() {
+ this.hh[0] = 0x6a09e667;
+ this.hh[1] = 0xbb67ae85;
+ this.hh[2] = 0x3c6ef372;
+ this.hh[3] = 0xa54ff53a;
+ this.hh[4] = 0x510e527f;
+ this.hh[5] = 0x9b05688c;
+ this.hh[6] = 0x1f83d9ab;
+ this.hh[7] = 0x5be0cd19;
+
+ this.hl[0] = 0xf3bcc908;
+ this.hl[1] = 0x84caa73b;
+ this.hl[2] = 0xfe94f82b;
+ this.hl[3] = 0x5f1d36f1;
+ this.hl[4] = 0xade682d1;
+ this.hl[5] = 0x2b3e6c1f;
+ this.hl[6] = 0xfb41bd6b;
+ this.hl[7] = 0x137e2179;
+ }
+
+ update(data: Uint8Array): HashState {
+ this.total += data.length;
+ let i = 0;
+ while (i < data.length) {
+ const r = 128 - this.p;
+ if (r > data.length - i) {
+ for (let j = 0; i + j < data.length; j++) {
+ this.next[this.p + j] = data[i + j];
+ }
+ this.p += data.length - i;
+ break;
+ } else {
+ for (let j = 0; this.p + j < 128; j++) {
+ this.next[this.p + j] = data[i + j];
+ }
+ crypto_hashblocks_hl(this.hh, this.hl, this.next, 128);
+ i += 128 - this.p;
+ this.p = 0;
+ }
+ }
+ return this;
+ }
+
+ finish(): Uint8Array {
+ const out = new Uint8Array(64);
+ let n = this.p;
+ const x = new Uint8Array(256);
+ const b = this.total;
+ for (let i = 0; i < n; i++) x[i] = this.next[i];
+ x[n] = 128;
+
+ n = 256 - 128 * (n < 112 ? 1 : 0);
+ x[n - 9] = 0;
+ ts64(x, n - 8, (b / 0x20000000) | 0, b << 3);
+ crypto_hashblocks_hl(this.hh, this.hl, x, n);
+
+ for (let i = 0; i < 8; i++) ts64(out, 8 * i, this.hh[i], this.hl[i]);
+ return out;
+ }
+}
+
+function add(p: Float64Array[], q: Float64Array[]): void {
+ const a = gf(),
+ b = gf(),
+ c = gf(),
+ d = gf(),
+ e = gf(),
+ f = gf(),
+ g = gf(),
+ h = gf(),
+ t = gf();
+
+ Z(a, p[1], p[0]);
+ Z(t, q[1], q[0]);
+ M(a, a, t);
+ A(b, p[0], p[1]);
+ A(t, q[0], q[1]);
+ M(b, b, t);
+ M(c, p[3], q[3]);
+ M(c, c, D2);
+ M(d, p[2], q[2]);
+ A(d, d, d);
+ Z(e, b, a);
+ Z(f, d, c);
+ A(g, d, c);
+ A(h, b, a);
+
+ M(p[0], e, f);
+ M(p[1], h, g);
+ M(p[2], g, f);
+ M(p[3], e, h);
+}
+
+function cswap(p: Float64Array[], q: Float64Array[], b: number): void {
+ let i;
+ for (i = 0; i < 4; i++) {
+ sel25519(p[i], q[i], b);
+ }
+}
+
+function pack(r: Uint8Array, p: Float64Array[]): void {
+ const tx = gf(),
+ ty = gf(),
+ zi = gf();
+ inv25519(zi, p[2]);
+ M(tx, p[0], zi);
+ M(ty, p[1], zi);
+ pack25519(r, ty);
+ r[31] ^= par25519(tx) << 7;
+}
+
+function scalarmult(p: Float64Array[], q: Float64Array[], s: Uint8Array): void {
+ let b, i;
+ set25519(p[0], gf0);
+ set25519(p[1], gf1);
+ set25519(p[2], gf1);
+ set25519(p[3], gf0);
+ for (i = 255; i >= 0; --i) {
+ b = (s[(i / 8) | 0] >> (i & 7)) & 1;
+ cswap(p, q, b);
+ add(q, p);
+ add(p, p);
+ cswap(p, q, b);
+ }
+}
+
+function scalarbase(p: Float64Array[], s: Uint8Array): void {
+ const q = [gf(), gf(), gf(), gf()];
+ set25519(q[0], X);
+ set25519(q[1], Y);
+ set25519(q[2], gf1);
+ M(q[3], X, Y);
+ scalarmult(p, q, s);
+}
+
+function crypto_sign_keypair(
+ pk: Uint8Array,
+ sk: Uint8Array,
+ seeded: boolean,
+): number {
+ const d = new Uint8Array(64);
+ const p = [gf(), gf(), gf(), gf()];
+
+ if (!seeded) randombytes(sk, 32);
+ crypto_hash(d, sk, 32);
+ d[0] &= 248;
+ d[31] &= 127;
+ d[31] |= 64;
+
+ scalarbase(p, d);
+ pack(pk, p);
+
+ for (let i = 0; i < 32; i++) sk[i + 32] = pk[i];
+ return 0;
+}
+
+const L = new Float64Array([
+ 0xed,
+ 0xd3,
+ 0xf5,
+ 0x5c,
+ 0x1a,
+ 0x63,
+ 0x12,
+ 0x58,
+ 0xd6,
+ 0x9c,
+ 0xf7,
+ 0xa2,
+ 0xde,
+ 0xf9,
+ 0xde,
+ 0x14,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0x10,
+]);
+
+function modL(r: Uint8Array, x: Float64Array): void {
+ let carry, i, j, k;
+ for (i = 63; i >= 32; --i) {
+ carry = 0;
+ for (j = i - 32, k = i - 12; j < k; ++j) {
+ x[j] += carry - 16 * x[i] * L[j - (i - 32)];
+ carry = (x[j] + 128) >> 8;
+ x[j] -= carry * 256;
+ }
+ x[j] += carry;
+ x[i] = 0;
+ }
+ carry = 0;
+ for (j = 0; j < 32; j++) {
+ x[j] += carry - (x[31] >> 4) * L[j];
+ carry = x[j] >> 8;
+ x[j] &= 255;
+ }
+ for (j = 0; j < 32; j++) x[j] -= carry * L[j];
+ for (i = 0; i < 32; i++) {
+ x[i + 1] += x[i] >> 8;
+ r[i] = x[i] & 255;
+ }
+}
+
+function reduce(r: Uint8Array): void {
+ const x = new Float64Array(64);
+ for (let i = 0; i < 64; i++) x[i] = r[i];
+ for (let i = 0; i < 64; i++) r[i] = 0;
+ modL(r, x);
+}
+
+// Note: difference from C - smlen returned, not passed as argument.
+function crypto_sign(
+ sm: Uint8Array,
+ m: Uint8Array,
+ n: number,
+ sk: Uint8Array,
+): number {
+ const d = new Uint8Array(64),
+ h = new Uint8Array(64),
+ r = new Uint8Array(64);
+ let i, j;
+ const x = new Float64Array(64);
+ const p = [gf(), gf(), gf(), gf()];
+
+ crypto_hash(d, sk, 32);
+ d[0] &= 248;
+ d[31] &= 127;
+ d[31] |= 64;
+
+ const smlen = n + 64;
+ for (i = 0; i < n; i++) sm[64 + i] = m[i];
+ for (i = 0; i < 32; i++) sm[32 + i] = d[32 + i];
+
+ crypto_hash(r, sm.subarray(32), n + 32);
+ reduce(r);
+ scalarbase(p, r);
+ pack(sm, p);
+
+ for (i = 32; i < 64; i++) sm[i] = sk[i];
+ crypto_hash(h, sm, n + 64);
+ reduce(h);
+
+ for (i = 0; i < 64; i++) x[i] = 0;
+ for (i = 0; i < 32; i++) x[i] = r[i];
+ for (i = 0; i < 32; i++) {
+ for (j = 0; j < 32; j++) {
+ x[i + j] += h[i] * d[j];
+ }
+ }
+
+ modL(sm.subarray(32), x);
+ return smlen;
+}
+
+function unpackneg(r: Float64Array[], p: Uint8Array): number {
+ const t = gf();
+ const chk = gf();
+ const num = gf();
+ const den = gf();
+ const den2 = gf();
+ const den4 = gf();
+ const den6 = gf();
+
+ set25519(r[2], gf1);
+ unpack25519(r[1], p);
+ S(num, r[1]);
+ M(den, num, D);
+ Z(num, num, r[2]);
+ A(den, r[2], den);
+
+ S(den2, den);
+ S(den4, den2);
+ M(den6, den4, den2);
+ M(t, den6, num);
+ M(t, t, den);
+
+ pow2523(t, t);
+ M(t, t, num);
+ M(t, t, den);
+ M(t, t, den);
+ M(r[0], t, den);
+
+ S(chk, r[0]);
+ M(chk, chk, den);
+ if (neq25519(chk, num)) M(r[0], r[0], I);
+
+ S(chk, r[0]);
+ M(chk, chk, den);
+ if (neq25519(chk, num)) return -1;
+
+ if (par25519(r[0]) === p[31] >> 7) Z(r[0], gf0, r[0]);
+
+ M(r[3], r[0], r[1]);
+ return 0;
+}
+
+function crypto_sign_open(
+ m: Uint8Array,
+ sm: Uint8Array,
+ n: number,
+ pk: Uint8Array,
+): number {
+ let i, mlen;
+ const t = new Uint8Array(32),
+ h = new Uint8Array(64);
+ const p = [gf(), gf(), gf(), gf()],
+ q = [gf(), gf(), gf(), gf()];
+
+ mlen = -1;
+ if (n < 64) return -1;
+
+ if (unpackneg(q, pk)) return -1;
+
+ for (i = 0; i < n; i++) m[i] = sm[i];
+ for (i = 0; i < 32; i++) m[i + 32] = pk[i];
+ crypto_hash(h, m, n);
+ reduce(h);
+ scalarmult(p, q, h);
+
+ scalarbase(q, sm.subarray(32));
+ add(p, q);
+ pack(t, p);
+
+ n -= 64;
+ if (crypto_verify_32(sm, 0, t, 0)) {
+ for (i = 0; i < n; i++) m[i] = 0;
+ return -1;
+ }
+
+ for (i = 0; i < n; i++) m[i] = sm[i + 64];
+ mlen = n;
+ return mlen;
+}
+
+const crypto_scalarmult_BYTES = 32,
+ crypto_scalarmult_SCALARBYTES = 32,
+ crypto_sign_BYTES = 64,
+ crypto_sign_PUBLICKEYBYTES = 32,
+ crypto_sign_SECRETKEYBYTES = 64,
+ crypto_sign_SEEDBYTES = 32,
+ crypto_hash_BYTES = 64;
+
+/* High-level API */
+
+function checkArrayTypes(...args: Uint8Array[]): void {
+ for (let i = 0; i < args.length; i++) {
+ if (!(args[i] instanceof Uint8Array))
+ throw new TypeError("unexpected type, use Uint8Array");
+ }
+}
+
+function cleanup(arr: Uint8Array): void {
+ for (let i = 0; i < arr.length; i++) arr[i] = 0;
+}
+
+export function randomBytes(n: number): Uint8Array {
+ const b = new Uint8Array(n);
+ randombytes(b, n);
+ return b;
+}
+
+export function scalarMult(n: Uint8Array, p: Uint8Array): Uint8Array {
+ checkArrayTypes(n, p);
+ if (n.length !== crypto_scalarmult_SCALARBYTES) throw new Error("bad n size");
+ if (p.length !== crypto_scalarmult_BYTES) throw new Error("bad p size");
+ const q = new Uint8Array(crypto_scalarmult_BYTES);
+ crypto_scalarmult(q, n, p);
+ return q;
+}
+
+export function scalarMult_base(n: Uint8Array): Uint8Array {
+ checkArrayTypes(n);
+ if (n.length !== crypto_scalarmult_SCALARBYTES) throw new Error("bad n size");
+ const q = new Uint8Array(crypto_scalarmult_BYTES);
+ crypto_scalarmult_base(q, n);
+ return q;
+}
+
+export const scalarMult_scalarLength = crypto_scalarmult_SCALARBYTES;
+export const scalarMult_groupElementLength = crypto_scalarmult_BYTES;
+
+export function sign(msg: Uint8Array, secretKey: Uint8Array): Uint8Array {
+ checkArrayTypes(msg, secretKey);
+ if (secretKey.length !== crypto_sign_SECRETKEYBYTES)
+ throw new Error("bad secret key size");
+ const signedMsg = new Uint8Array(crypto_sign_BYTES + msg.length);
+ crypto_sign(signedMsg, msg, msg.length, secretKey);
+ return signedMsg;
+}
+
+export function sign_open(
+ signedMsg: Uint8Array,
+ publicKey: Uint8Array,
+): Uint8Array | null {
+ checkArrayTypes(signedMsg, publicKey);
+ if (publicKey.length !== crypto_sign_PUBLICKEYBYTES)
+ throw new Error("bad public key size");
+ const tmp = new Uint8Array(signedMsg.length);
+ const mlen = crypto_sign_open(tmp, signedMsg, signedMsg.length, publicKey);
+ if (mlen < 0) return null;
+ const m = new Uint8Array(mlen);
+ for (let i = 0; i < m.length; i++) m[i] = tmp[i];
+ return m;
+}
+
+export function sign_detached(
+ msg: Uint8Array,
+ secretKey: Uint8Array,
+): Uint8Array {
+ const signedMsg = sign(msg, secretKey);
+ const sig = new Uint8Array(crypto_sign_BYTES);
+ for (let i = 0; i < sig.length; i++) sig[i] = signedMsg[i];
+ return sig;
+}
+
+export function sign_detached_verify(
+ msg: Uint8Array,
+ sig: Uint8Array,
+ publicKey: Uint8Array,
+): boolean {
+ checkArrayTypes(msg, sig, publicKey);
+ if (sig.length !== crypto_sign_BYTES) throw new Error("bad signature size");
+ if (publicKey.length !== crypto_sign_PUBLICKEYBYTES)
+ throw new Error("bad public key size");
+ const sm = new Uint8Array(crypto_sign_BYTES + msg.length);
+ const m = new Uint8Array(crypto_sign_BYTES + msg.length);
+ let i;
+ for (i = 0; i < crypto_sign_BYTES; i++) sm[i] = sig[i];
+ for (i = 0; i < msg.length; i++) sm[i + crypto_sign_BYTES] = msg[i];
+ return crypto_sign_open(m, sm, sm.length, publicKey) >= 0;
+}
+
+export function sign_keyPair(): {
+ publicKey: Uint8Array;
+ secretKey: Uint8Array;
+} {
+ const pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES);
+ const sk = new Uint8Array(crypto_sign_SECRETKEYBYTES);
+ crypto_sign_keypair(pk, sk, false);
+ return { publicKey: pk, secretKey: sk };
+}
+
+export function x25519_edwards_keyPair_fromSecretKey(
+ secretKey: Uint8Array,
+): Uint8Array {
+ const p = [gf(), gf(), gf(), gf()];
+ const pk = new Uint8Array(32);
+
+ const d = new Uint8Array(64);
+ if (secretKey.length != 32) {
+ throw new Error("bad secret key size");
+ }
+ d.set(secretKey, 0);
+ //crypto_hash(d, secretKey, 32);
+
+ d[0] &= 248;
+ d[31] &= 127;
+ d[31] |= 64;
+
+ scalarbase(p, d);
+ pack(pk, p);
+
+ return pk;
+}
+
+export function sign_keyPair_fromSecretKey(
+ secretKey: Uint8Array,
+): {
+ publicKey: Uint8Array;
+ secretKey: Uint8Array;
+} {
+ checkArrayTypes(secretKey);
+ if (secretKey.length !== crypto_sign_SECRETKEYBYTES)
+ throw new Error("bad secret key size");
+ const pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES);
+ for (let i = 0; i < pk.length; i++) pk[i] = secretKey[32 + i];
+ return { publicKey: pk, secretKey: new Uint8Array(secretKey) };
+}
+
+export function sign_keyPair_fromSeed(
+ seed: Uint8Array,
+): {
+ publicKey: Uint8Array;
+ secretKey: Uint8Array;
+} {
+ checkArrayTypes(seed);
+ if (seed.length !== crypto_sign_SEEDBYTES) throw new Error("bad seed size");
+ const pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES);
+ const sk = new Uint8Array(crypto_sign_SECRETKEYBYTES);
+ for (let i = 0; i < 32; i++) sk[i] = seed[i];
+ crypto_sign_keypair(pk, sk, true);
+ return { publicKey: pk, secretKey: sk };
+}
+
+export const sign_publicKeyLength = crypto_sign_PUBLICKEYBYTES;
+export const sign_secretKeyLength = crypto_sign_SECRETKEYBYTES;
+export const sign_seedLength = crypto_sign_SEEDBYTES;
+export const sign_signatureLength = crypto_sign_BYTES;
+
+export function hash(msg: Uint8Array): Uint8Array {
+ checkArrayTypes(msg);
+ const h = new Uint8Array(crypto_hash_BYTES);
+ crypto_hash(h, msg, msg.length);
+ return h;
+}
+
+export const hash_hashLength = crypto_hash_BYTES;
+
+export function verify(x: Uint8Array, y: Uint8Array): boolean {
+ checkArrayTypes(x, y);
+ // Zero length arguments are considered not equal.
+ if (x.length === 0 || y.length === 0) return false;
+ if (x.length !== y.length) return false;
+ return vn(x, 0, y, 0, x.length) === 0 ? true : false;
+}
+
+export function setPRNG(fn: (x: Uint8Array, n: number) => void): void {
+ randombytes = fn;
+}
+
+export function sign_ed25519_pk_to_curve25519(
+ ed25519_pk: Uint8Array,
+): Uint8Array {
+ const ge_a = [gf(), gf(), gf(), gf()];
+ const x = gf();
+ const one_minus_y = gf();
+ const x25519_pk = new Uint8Array(32);
+
+ if (unpackneg(ge_a, ed25519_pk)) {
+ throw Error("invalid public key");
+ }
+
+ set25519(one_minus_y, gf1);
+ Z(one_minus_y, one_minus_y, ge_a[1]);
+
+ set25519(x, gf1);
+ A(x, x, ge_a[1]);
+
+ inv25519(one_minus_y, one_minus_y);
+ M(x, x, one_minus_y);
+ pack25519(x25519_pk, x);
+
+ return x25519_pk;
+}
+
+(function () {
+ // Initialize PRNG if environment provides CSPRNG.
+ // If not, methods calling randombytes will throw.
+ // @ts-ignore-error
+ const cr = typeof self !== "undefined" ? self.crypto || self.msCrypto : null;
+ if (cr && cr.getRandomValues) {
+ // Browsers.
+ const QUOTA = 65536;
+ setPRNG(function (x: Uint8Array, n: number) {
+ let i;
+ const v = new Uint8Array(n);
+ for (i = 0; i < n; i += QUOTA) {
+ cr.getRandomValues(v.subarray(i, i + Math.min(n - i, QUOTA)));
+ }
+ for (i = 0; i < n; i++) x[i] = v[i];
+ cleanup(v);
+ });
+ } else if (typeof require !== "undefined") {
+ // Node.js.
+ // eslint-disable-next-line @typescript-eslint/no-var-requires
+ const cr = require("crypto");
+ if (cr && cr.randomBytes) {
+ setPRNG(function (x: Uint8Array, n: number) {
+ const v = cr.randomBytes(n);
+ for (let i = 0; i < n; i++) x[i] = v[i];
+ cleanup(v);
+ });
+ }
+ }
+})();
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-04 04:24:59 +0000