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openssl 1.1 for ECDSA

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orignal 2016-11-09 15:59:01 -05:00
parent 46f927fc1b
commit a4d586b24e
2 changed files with 13 additions and 6 deletions
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6
Crypto.h
View file

@ -7,6 +7,7 @@
#include <openssl/dh.h>
#include <openssl/aes.h>
#include <openssl/dsa.h>
#include <openssl/ecdsa.h>
#include <openssl/rsa.h>
#include <openssl/sha.h>
#include <openssl/rand.h>
@ -296,6 +297,11 @@ inline int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s)
inline void DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps)
{ *pr = sig->r; *ps = sig->s; }
inline int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s)
{ sig->r = r; sig->s = s; return 1; }
inline void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps)
{ *pr = sig->r; *ps = sig->s; }
inline int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d)
{ r->n = n; r->e = e; r->d = d; return 1; }
inline void RSA_get0_key(const RSA *r, const BIGNUM **n, const BIGNUM **e, const BIGNUM **d)

13
Signature.h
View file

@ -169,8 +169,9 @@ namespace crypto
uint8_t digest[Hash::hashLen];
Hash::CalculateHash (buf, len, digest);
ECDSA_SIG * sig = ECDSA_SIG_new();
sig->r = BN_bin2bn (signature, GetSignatureLen ()/2, NULL);
sig->s = BN_bin2bn (signature + GetSignatureLen ()/2, GetSignatureLen ()/2, NULL);
auto r = BN_bin2bn (signature, GetSignatureLen ()/2, NULL);
auto s = BN_bin2bn (signature + GetSignatureLen ()/2, GetSignatureLen ()/2, NULL);
ECDSA_SIG_set0(sig, r, s);
// ECDSA verification
int ret = ECDSA_do_verify (digest, Hash::hashLen, sig, m_PublicKey);
ECDSA_SIG_free(sig);
@ -207,9 +208,11 @@ namespace crypto
uint8_t digest[Hash::hashLen];
Hash::CalculateHash (buf, len, digest);
ECDSA_SIG * sig = ECDSA_do_sign (digest, Hash::hashLen, m_PrivateKey);
const BIGNUM * r, * s;
ECDSA_SIG_get0 (sig, &r, &s);
// signatureLen = keyLen
bn2buf (sig->r, signature, keyLen/2);
bn2buf (sig->s, signature + keyLen/2, keyLen/2);
bn2buf (r, signature, keyLen/2);
bn2buf (s, signature + keyLen/2, keyLen/2);
ECDSA_SIG_free(sig);
}
@ -271,7 +274,6 @@ namespace crypto
RSAVerifier (const uint8_t * signingKey)
{
m_PublicKey = RSA_new ();
memset (m_PublicKey, 0, sizeof (RSA));
RSA_set0_key (m_PublicKey, BN_bin2bn (signingKey, keyLen, NULL) /* n */ , BN_dup (GetRSAE ()) /* d */, NULL);
}
@ -304,7 +306,6 @@ namespace crypto
RSASigner (const uint8_t * signingPrivateKey)
{
m_PrivateKey = RSA_new ();
memset (m_PrivateKey, 0, sizeof (RSA));
RSA_set0_key (m_PrivateKey, BN_bin2bn (signingPrivateKey, keyLen, NULL), /* n */
BN_dup (GetRSAE ()) /* e */, BN_bin2bn (signingPrivateKey + keyLen, keyLen, NULL) /* d */);
}