version 1.10.2.1, 2001/11/14 03:24:39 |
version 1.10.2.2, 2002/03/07 17:37:47 |
|
|
int |
int |
ssh_rsa_sign( |
ssh_rsa_sign( |
Key *key, |
Key *key, |
u_char **sigp, int *lenp, |
u_char **sigp, u_int *lenp, |
u_char *data, int datalen) |
u_char *data, u_int datalen) |
{ |
{ |
const EVP_MD *evp_md; |
const EVP_MD *evp_md; |
EVP_MD_CTX md; |
EVP_MD_CTX md; |
u_char *digest, *sig, *ret; |
u_char digest[EVP_MAX_MD_SIZE], *sig, *ret; |
u_int slen, dlen, len; |
u_int slen, dlen, len; |
int ok, nid; |
int ok, nid; |
Buffer b; |
Buffer b; |
|
|
error("ssh_rsa_sign: EVP_get_digestbynid %d failed", nid); |
error("ssh_rsa_sign: EVP_get_digestbynid %d failed", nid); |
return -1; |
return -1; |
} |
} |
dlen = evp_md->md_size; |
|
digest = xmalloc(dlen); |
|
EVP_DigestInit(&md, evp_md); |
EVP_DigestInit(&md, evp_md); |
EVP_DigestUpdate(&md, data, datalen); |
EVP_DigestUpdate(&md, data, datalen); |
EVP_DigestFinal(&md, digest, NULL); |
EVP_DigestFinal(&md, digest, &dlen); |
|
|
slen = RSA_size(key->rsa); |
slen = RSA_size(key->rsa); |
sig = xmalloc(slen); |
sig = xmalloc(slen); |
|
|
ok = RSA_sign(nid, digest, dlen, sig, &len, key->rsa); |
ok = RSA_sign(nid, digest, dlen, sig, &len, key->rsa); |
memset(digest, 'd', dlen); |
memset(digest, 'd', sizeof(digest)); |
xfree(digest); |
|
|
|
if (ok != 1) { |
if (ok != 1) { |
int ecode = ERR_get_error(); |
int ecode = ERR_get_error(); |
|
|
int |
int |
ssh_rsa_verify( |
ssh_rsa_verify( |
Key *key, |
Key *key, |
u_char *signature, int signaturelen, |
u_char *signature, u_int signaturelen, |
u_char *data, int datalen) |
u_char *data, u_int datalen) |
{ |
{ |
Buffer b; |
Buffer b; |
const EVP_MD *evp_md; |
const EVP_MD *evp_md; |
EVP_MD_CTX md; |
EVP_MD_CTX md; |
char *ktype; |
char *ktype; |
u_char *sigblob, *digest; |
u_char digest[EVP_MAX_MD_SIZE], *sigblob; |
u_int len, dlen; |
u_int len, dlen; |
int rlen, ret, nid; |
int rlen, ret, nid; |
|
|
|
|
sigblob = buffer_get_string(&b, &len); |
sigblob = buffer_get_string(&b, &len); |
rlen = buffer_len(&b); |
rlen = buffer_len(&b); |
buffer_free(&b); |
buffer_free(&b); |
if(rlen != 0) { |
if (rlen != 0) { |
error("ssh_rsa_verify: remaining bytes in signature %d", rlen); |
error("ssh_rsa_verify: remaining bytes in signature %d", rlen); |
xfree(sigblob); |
xfree(sigblob); |
return -1; |
return -1; |
|
|
xfree(sigblob); |
xfree(sigblob); |
return -1; |
return -1; |
} |
} |
dlen = evp_md->md_size; |
|
digest = xmalloc(dlen); |
|
EVP_DigestInit(&md, evp_md); |
EVP_DigestInit(&md, evp_md); |
EVP_DigestUpdate(&md, data, datalen); |
EVP_DigestUpdate(&md, data, datalen); |
EVP_DigestFinal(&md, digest, NULL); |
EVP_DigestFinal(&md, digest, &dlen); |
|
|
ret = RSA_verify(nid, digest, dlen, sigblob, len, key->rsa); |
ret = RSA_verify(nid, digest, dlen, sigblob, len, key->rsa); |
memset(digest, 'd', dlen); |
memset(digest, 'd', sizeof(digest)); |
xfree(digest); |
|
memset(sigblob, 's', len); |
memset(sigblob, 's', len); |
xfree(sigblob); |
xfree(sigblob); |
if (ret == 0) { |
if (ret == 0) { |