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Fixed extraction of RSA modulus and exponent

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This commit is contained in:
Mikhail Denisenko
2015-12-09 13:13:24 -05:00
parent 2bbe710559
commit 5a60faf779
3 changed files with 45 additions and 13 deletions
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ykcs11/openssl_utils.c
+30 -3
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@@ -317,16 +317,43 @@ CK_ULONG do_get_rsa_modulus_length(EVP_PKEY *key) {
}
CK_ULONG do_get_public_exponent(EVP_PKEY *key) {
CK_RV do_get_modulus(EVP_PKEY *key, CK_BYTE_PTR data, CK_ULONG_PTR len) {
RSA *rsa;
rsa = EVP_PKEY_get1_RSA(key);
if (rsa == NULL)
return CKR_FUNCTION_FAILED;
if ((CK_ULONG)BN_num_bytes(rsa->n) > *len) {
RSA_free(rsa);
rsa = NULL;
return CKR_BUFFER_TOO_SMALL;
}
*len = (CK_ULONG)BN_bn2bin(rsa->n, data);
RSA_free(rsa);
rsa = NULL;
return CKR_OK;
}
CK_RV do_get_public_exponent(EVP_PKEY *key, CK_BYTE_PTR data, CK_ULONG_PTR len) {
CK_ULONG e = 0;
RSA *rsa;
rsa = EVP_PKEY_get1_RSA(key);
if (rsa == NULL)
return 0;
return CKR_FUNCTION_FAILED;
BN_bn2bin(rsa->e, (unsigned char *)&e);
if ((CK_ULONG)BN_num_bytes(rsa->e) > *len) {
RSA_free(rsa);
rsa = NULL;
return CKR_BUFFER_TOO_SMALL;
}
*len = (CK_ULONG)BN_bn2bin(rsa->e, data);
RSA_free(rsa);
rsa = NULL;