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Diffstat (limited to 'src/crypto/talerCrypto.ts')
| -rw-r--r-- | src/crypto/talerCrypto.ts | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/crypto/talerCrypto.ts b/src/crypto/talerCrypto.ts index b754b0c57..317b1af55 100644 --- a/src/crypto/talerCrypto.ts +++ b/src/crypto/talerCrypto.ts @@ -237,6 +237,9 @@ function rsaFullDomainHash(hm: Uint8Array, rsaPub: RsaPub): bigint.BigInteger { function rsaPubDecode(rsaPub: Uint8Array): RsaPub { const modulusLength = (rsaPub[0] << 8) | rsaPub[1]; const exponentLength = (rsaPub[2] << 8) | rsaPub[3]; + if (4 + exponentLength + modulusLength != rsaPub.length) { + throw Error("invalid RSA public key (format wrong)"); + } const modulus = rsaPub.slice(4, 4 + modulusLength); const exponent = rsaPub.slice( 4 + modulusLength, |