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| author | Martin Willi <martin@strongswan.org> | 2008-11-04 14:05:42 +0000 |
|---|---|---|
| committer | Martin Willi <martin@strongswan.org> | 2008-11-04 14:05:42 +0000 |
| commit | 7854475f422584e161cbbeddd05e86f96a21169e (patch) | |
| tree | aa865eb2130fa35e8c872f975563396cbec10c44 /src/libstrongswan/plugins/openssl | |
| parent | d4f08fe324ea2d509955eca93af34bc0684beed0 (diff) | |
| download | strongswan-7854475f422584e161cbbeddd05e86f96a21169e.tar.bz2 strongswan-7854475f422584e161cbbeddd05e86f96a21169e.tar.xz | |
OpenSSL requires a signature length of exactly RSA_size()
Diffstat (limited to 'src/libstrongswan/plugins/openssl')
| -rw-r--r-- | src/libstrongswan/plugins/openssl/openssl_rsa_public_key.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/src/libstrongswan/plugins/openssl/openssl_rsa_public_key.c b/src/libstrongswan/plugins/openssl/openssl_rsa_public_key.c index 756a033bd..eb051b7ab 100644 --- a/src/libstrongswan/plugins/openssl/openssl_rsa_public_key.c +++ b/src/libstrongswan/plugins/openssl/openssl_rsa_public_key.c @@ -90,13 +90,11 @@ static bool verify_emsa_pkcs1_signature(private_openssl_rsa_public_key_t *this, goto error; } - /* remove any preceding 0-bytes from signature */ - while (signature.len && *(signature.ptr) == 0x00) + /* VerifyFinal expects a signature of exactly RSA size (no leading 0x00) */ + if (signature.len > RSA_size(this->rsa)) { - signature.len -= 1; - signature.ptr++; + signature = chunk_skip(signature, signature.len - RSA_size(this->rsa)); } - valid = (EVP_VerifyFinal(ctx, signature.ptr, signature.len, key) == 1); error: |