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Added support to build RSA keys from components in openssl

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This commit is contained in:
Martin Willi
2009-09-14 14:29:10 +02:00
parent 341af94dc6
commit b9fbd66587
2 changed files with 72 additions and 15 deletions
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src/libstrongswan/plugins/openssl/openssl_rsa_public_key.c
+23 -6
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@@ -304,8 +304,9 @@ openssl_rsa_public_key_t *openssl_rsa_public_key_load(key_type_t type,
va_list args)
{
private_openssl_rsa_public_key_t *this;
chunk_t blob;
chunk_t blob, n, e;
n = e = blob = chunk_empty;
while (TRUE)
{
switch (va_arg(args, builder_part_t))
@@ -313,6 +314,12 @@ openssl_rsa_public_key_t *openssl_rsa_public_key_load(key_type_t type,
case BUILD_BLOB_ASN1_DER:
blob = va_arg(args, chunk_t);
continue;
case BUILD_RSA_MODULUS:
n = va_arg(args, chunk_t);
continue;
case BUILD_RSA_PUB_EXP:
e = va_arg(args, chunk_t);
continue;
case BUILD_END:
break;
default:
@@ -322,12 +329,22 @@ openssl_rsa_public_key_t *openssl_rsa_public_key_load(key_type_t type,
}
this = create_empty();
this->rsa = d2i_RSAPublicKey(NULL, (const u_char**)&blob.ptr, blob.len);
if (!this->rsa)
if (blob.ptr)
{
destroy(this);
return NULL;
this->rsa = d2i_RSAPublicKey(NULL, (const u_char**)&blob.ptr, blob.len);
if (this->rsa)
{
return &this->public;
}
}
return &this->public;
else if (n.ptr && e.ptr)
{
this->rsa = RSA_new();
this->rsa->n = BN_bin2bn((const u_char*)n.ptr, n.len, NULL);
this->rsa->e = BN_bin2bn((const u_char*)e.ptr, e.len, NULL);
return &this->public;
}
destroy(this);
return NULL;
}