version 1.10.2.4, 2002/06/22 07:23:18 |
version 1.10.2.5, 2002/06/26 18:22:36 |
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/* RSASSA-PKCS1-v1_5 (PKCS #1 v2.0 signature) with SHA1 */ |
/* RSASSA-PKCS1-v1_5 (PKCS #1 v2.0 signature) with SHA1 */ |
int |
int |
ssh_rsa_sign( |
ssh_rsa_sign(Key *key, u_char **sigp, u_int *lenp, |
Key *key, |
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u_char **sigp, u_int *lenp, |
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u_char *data, u_int datalen) |
u_char *data, u_int datalen) |
{ |
{ |
const EVP_MD *evp_md; |
const EVP_MD *evp_md; |
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if (ok != 1) { |
if (ok != 1) { |
int ecode = ERR_get_error(); |
int ecode = ERR_get_error(); |
error("ssh_rsa_sign: RSA_sign failed: %s", ERR_error_string(ecode, NULL)); |
error("ssh_rsa_sign: RSA_sign failed: %s", |
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ERR_error_string(ecode, NULL)); |
xfree(sig); |
xfree(sig); |
return -1; |
return -1; |
} |
} |
if (len < slen) { |
if (len < slen) { |
int diff = slen - len; |
int diff = slen - len; |
debug("slen %d > len %d", slen, len); |
debug("slen %u > len %u", slen, len); |
memmove(sig + diff, sig, len); |
memmove(sig + diff, sig, len); |
memset(sig, 0, diff); |
memset(sig, 0, diff); |
} else if (len > slen) { |
} else if (len > slen) { |
error("ssh_rsa_sign: slen %d slen2 %d", slen, len); |
error("ssh_rsa_sign: slen %u slen2 %u", slen, len); |
xfree(sig); |
xfree(sig); |
return -1; |
return -1; |
} |
} |
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} |
} |
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int |
int |
ssh_rsa_verify( |
ssh_rsa_verify(Key *key, u_char *signature, u_int signaturelen, |
Key *key, |
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u_char *signature, u_int signaturelen, |
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u_char *data, u_int datalen) |
u_char *data, u_int datalen) |
{ |
{ |
Buffer b; |
Buffer b; |
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/* RSA_verify expects a signature of RSA_size */ |
/* RSA_verify expects a signature of RSA_size */ |
modlen = RSA_size(key->rsa); |
modlen = RSA_size(key->rsa); |
if (len > modlen) { |
if (len > modlen) { |
error("ssh_rsa_verify: len %d > modlen %d", len, modlen); |
error("ssh_rsa_verify: len %u > modlen %u", len, modlen); |
xfree(sigblob); |
xfree(sigblob); |
return -1; |
return -1; |
} else if (len < modlen) { |
} else if (len < modlen) { |
int diff = modlen - len; |
int diff = modlen - len; |
debug("ssh_rsa_verify: add padding: modlen %d > len %d", |
debug("ssh_rsa_verify: add padding: modlen %u > len %u", |
modlen, len); |
modlen, len); |
sigblob = xrealloc(sigblob, modlen); |
sigblob = xrealloc(sigblob, modlen); |
memmove(sigblob + diff, sigblob, len); |
memmove(sigblob + diff, sigblob, len); |
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xfree(sigblob); |
xfree(sigblob); |
if (ret == 0) { |
if (ret == 0) { |
int ecode = ERR_get_error(); |
int ecode = ERR_get_error(); |
error("ssh_rsa_verify: RSA_verify failed: %s", ERR_error_string(ecode, NULL)); |
error("ssh_rsa_verify: RSA_verify failed: %s", |
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ERR_error_string(ecode, NULL)); |
} |
} |
debug("ssh_rsa_verify: signature %scorrect", (ret==0) ? "in" : ""); |
debug("ssh_rsa_verify: signature %scorrect", (ret==0) ? "in" : ""); |
return ret; |
return ret; |