diff options
Diffstat (limited to 'deps/openssl/openssl/crypto/rsa/rsa_chk.c')
| -rw-r--r-- | deps/openssl/openssl/crypto/rsa/rsa_chk.c | 84 |
1 files changed, 78 insertions, 6 deletions
diff --git a/deps/openssl/openssl/crypto/rsa/rsa_chk.c b/deps/openssl/openssl/crypto/rsa/rsa_chk.c index 00260fb18e..1b69be30ca 100644 --- a/deps/openssl/openssl/crypto/rsa/rsa_chk.c +++ b/deps/openssl/openssl/crypto/rsa/rsa_chk.c @@ -1,5 +1,5 @@ /* - * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 1999-2017 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the OpenSSL license (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy @@ -20,7 +20,8 @@ int RSA_check_key_ex(const RSA *key, BN_GENCB *cb) { BIGNUM *i, *j, *k, *l, *m; BN_CTX *ctx; - int ret = 1; + int ret = 1, ex_primes = 0, idx; + RSA_PRIME_INFO *pinfo; if (key->p == NULL || key->q == NULL || key->n == NULL || key->e == NULL || key->d == NULL) { @@ -28,6 +29,16 @@ int RSA_check_key_ex(const RSA *key, BN_GENCB *cb) return 0; } + /* multi-prime? */ + if (key->version == RSA_ASN1_VERSION_MULTI) { + ex_primes = sk_RSA_PRIME_INFO_num(key->prime_infos); + if (ex_primes <= 0 + || (ex_primes + 2) > rsa_multip_cap(BN_num_bits(key->n))) { + RSAerr(RSA_F_RSA_CHECK_KEY_EX, RSA_R_INVALID_MULTI_PRIME_KEY); + return 0; + } + } + i = BN_new(); j = BN_new(); k = BN_new(); @@ -62,17 +73,37 @@ int RSA_check_key_ex(const RSA *key, BN_GENCB *cb) RSAerr(RSA_F_RSA_CHECK_KEY_EX, RSA_R_Q_NOT_PRIME); } - /* n = p*q? */ + /* r_i prime? */ + for (idx = 0; idx < ex_primes; idx++) { + pinfo = sk_RSA_PRIME_INFO_value(key->prime_infos, idx); + if (BN_is_prime_ex(pinfo->r, BN_prime_checks, NULL, cb) != 1) { + ret = 0; + RSAerr(RSA_F_RSA_CHECK_KEY_EX, RSA_R_MP_R_NOT_PRIME); + } + } + + /* n = p*q * r_3...r_i? */ if (!BN_mul(i, key->p, key->q, ctx)) { ret = -1; goto err; } + for (idx = 0; idx < ex_primes; idx++) { + pinfo = sk_RSA_PRIME_INFO_value(key->prime_infos, idx); + if (!BN_mul(i, i, pinfo->r, ctx)) { + ret = -1; + goto err; + } + } if (BN_cmp(i, key->n) != 0) { ret = 0; - RSAerr(RSA_F_RSA_CHECK_KEY_EX, RSA_R_N_DOES_NOT_EQUAL_P_Q); + if (ex_primes) + RSAerr(RSA_F_RSA_CHECK_KEY_EX, + RSA_R_N_DOES_NOT_EQUAL_PRODUCT_OF_PRIMES); + else + RSAerr(RSA_F_RSA_CHECK_KEY_EX, RSA_R_N_DOES_NOT_EQUAL_P_Q); } - /* d*e = 1 mod lcm(p-1,q-1)? */ + /* d*e = 1 mod \lambda(n)? */ if (!BN_sub(i, key->p, BN_value_one())) { ret = -1; goto err; @@ -82,7 +113,7 @@ int RSA_check_key_ex(const RSA *key, BN_GENCB *cb) goto err; } - /* now compute k = lcm(i,j) */ + /* now compute k = \lambda(n) = LCM(i, j, r_3 - 1...) */ if (!BN_mul(l, i, j, ctx)) { ret = -1; goto err; @@ -91,6 +122,21 @@ int RSA_check_key_ex(const RSA *key, BN_GENCB *cb) ret = -1; goto err; } + for (idx = 0; idx < ex_primes; idx++) { + pinfo = sk_RSA_PRIME_INFO_value(key->prime_infos, idx); + if (!BN_sub(k, pinfo->r, BN_value_one())) { + ret = -1; + goto err; + } + if (!BN_mul(l, l, k, ctx)) { + ret = -1; + goto err; + } + if (!BN_gcd(m, m, k, ctx)) { + ret = -1; + goto err; + } + } if (!BN_div(k, NULL, l, m, ctx)) { /* remainder is 0 */ ret = -1; goto err; @@ -145,6 +191,32 @@ int RSA_check_key_ex(const RSA *key, BN_GENCB *cb) } } + for (idx = 0; idx < ex_primes; idx++) { + pinfo = sk_RSA_PRIME_INFO_value(key->prime_infos, idx); + /* d_i = d mod (r_i - 1)? */ + if (!BN_sub(i, pinfo->r, BN_value_one())) { + ret = -1; + goto err; + } + if (!BN_mod(j, key->d, i, ctx)) { + ret = -1; + goto err; + } + if (BN_cmp(j, pinfo->d) != 0) { + ret = 0; + RSAerr(RSA_F_RSA_CHECK_KEY_EX, RSA_R_MP_EXPONENT_NOT_CONGRUENT_TO_D); + } + /* t_i = R_i ^ -1 mod r_i ? */ + if (!BN_mod_inverse(i, pinfo->pp, pinfo->r, ctx)) { + ret = -1; + goto err; + } + if (BN_cmp(i, pinfo->t) != 0) { + ret = 0; + RSAerr(RSA_F_RSA_CHECK_KEY_EX, RSA_R_MP_COEFFICIENT_NOT_INVERSE_OF_R); + } + } + err: BN_free(i); BN_free(j); |