134 lines
2.9 KiB
C
134 lines
2.9 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Client
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* Cryptographic Abstraction Layer
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*
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* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "crypto.h"
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CryptoSha1 crypto_sha1_init(void)
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{
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CryptoSha1 sha1 = xmalloc(sizeof(*sha1));
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SHA1_Init(&sha1->sha_ctx);
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return sha1;
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}
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void crypto_sha1_update(CryptoSha1 sha1, uint8* data, uint32 length)
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{
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SHA1_Update(&sha1->sha_ctx, data, length);
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}
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void crypto_sha1_final(CryptoSha1 sha1, uint8* out_data)
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{
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SHA1_Final(out_data, &sha1->sha_ctx);
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xfree(sha1);
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}
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CryptoMd5 crypto_md5_init(void)
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{
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CryptoMd5 md5 = xmalloc(sizeof(*md5));
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MD5_Init(&md5->md5_ctx);
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return md5;
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}
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void crypto_md5_update(CryptoMd5 md5, uint8* data, uint32 length)
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{
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MD5_Update(&md5->md5_ctx, data, length);
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}
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void crypto_md5_final(CryptoMd5 md5, uint8* out_data)
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{
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MD5_Final(out_data, &md5->md5_ctx);
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xfree(md5);
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}
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CryptoRc4 crypto_rc4_init(uint8* key, uint32 length)
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{
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CryptoRc4 rc4 = xmalloc(sizeof(*rc4));
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RC4_set_key(&rc4->rc4_key, length, key);
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return rc4;
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}
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void crypto_rc4(CryptoRc4 rc4, uint32 length, uint8* in_data, uint8* out_data)
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{
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RC4(&rc4->rc4_key, length, in_data, out_data);
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}
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void crypto_rc4_free(CryptoRc4 rc4)
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{
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xfree(rc4);
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}
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CryptoCert crypto_cert_read(uint8* data, uint32 length)
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{
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CryptoCert cert = xmalloc(sizeof(*cert));
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/* this will move the data pointer but we don't care, we don't use it again */
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cert->px509 = d2i_X509(NULL, (D2I_X509_CONST unsigned char **) &data, length);
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return cert;
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}
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void crypto_cert_free(CryptoCert cert)
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{
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X509_free(cert->px509);
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xfree(cert);
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}
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boolean crypto_cert_verify(CryptoCert server_cert, CryptoCert cacert)
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{
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return True; /* FIXME: do the actual verification */
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}
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boolean crypto_cert_get_public_key(CryptoCert cert, BLOB* public_key)
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{
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uint8* p;
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int length;
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boolean status = True;
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EVP_PKEY* pkey = NULL;
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pkey = X509_get_pubkey(cert->px509);
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if (!pkey)
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{
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printf("crypto_cert_get_public_key: X509_get_pubkey() failed\n");
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status = False;
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goto exit;
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}
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length = i2d_PublicKey(pkey, NULL);
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if (length < 1)
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{
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printf("crypto_cert_get_public_key: i2d_PublicKey() failed\n");
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status = False;
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goto exit;
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}
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freerdp_blob_alloc(public_key, length);
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p = (unsigned char*) public_key->data;
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i2d_PublicKey(pkey, &p);
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exit:
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if (pkey)
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EVP_PKEY_free(pkey);
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return status;
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}
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void crypto_nonce(uint8* nonce, int size)
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{
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RAND_bytes((void*) nonce, size);
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}
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