9f1d0201ec
This patch changes the prototype for decode_base64 so that the encode / decode method are consistant (encode(BYTE *) => char* and decode(char*) => BYTE*). It also does some improvements with unrolling loops so that end conditions are tested only at the end. The patch also adds some unitary tests. Before the patch base64_decode() made valgrind complain about uninitialized bits, after valgrind is happy and very quiet.
150 lines
5.4 KiB
C
150 lines
5.4 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* Cryptographic Abstraction Layer
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*
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* Copyright 2011-2012 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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#ifndef FREERDP_CRYPTO_H
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#define FREERDP_CRYPTO_H
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/* OpenSSL includes windows.h */
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#include <winpr/windows.h>
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#include <openssl/ssl.h>
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#include <openssl/err.h>
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#include <openssl/rc4.h>
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#include <openssl/md5.h>
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#include <openssl/sha.h>
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#include <openssl/hmac.h>
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#include <openssl/bn.h>
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#include <openssl/x509v3.h>
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#include <openssl/rand.h>
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#if defined(OPENSSL_VERSION_NUMBER) && (OPENSSL_VERSION_NUMBER >= 0x0090800f)
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#define D2I_X509_CONST const
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#else
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#define D2I_X509_CONST
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#endif
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#define EXPONENT_MAX_SIZE 4
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#include <freerdp/api.h>
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#include <freerdp/freerdp.h>
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struct crypto_sha1_struct
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{
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SHA_CTX sha_ctx;
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};
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struct crypto_md5_struct
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{
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MD5_CTX md5_ctx;
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};
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struct crypto_rc4_struct
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{
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RC4_KEY rc4_key;
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};
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struct crypto_des3_struct
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{
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EVP_CIPHER_CTX des3_ctx;
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};
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struct crypto_hmac_struct
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{
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HMAC_CTX hmac_ctx;
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};
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struct crypto_cert_struct
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{
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X509 * px509;
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};
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#define CRYPTO_SHA1_DIGEST_LENGTH SHA_DIGEST_LENGTH
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typedef struct crypto_sha1_struct* CryptoSha1;
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FREERDP_API CryptoSha1 crypto_sha1_init(void);
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FREERDP_API void crypto_sha1_update(CryptoSha1 sha1, const BYTE* data, UINT32 length);
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FREERDP_API void crypto_sha1_final(CryptoSha1 sha1, BYTE* out_data);
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#define CRYPTO_MD5_DIGEST_LENGTH MD5_DIGEST_LENGTH
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typedef struct crypto_md5_struct* CryptoMd5;
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FREERDP_API CryptoMd5 crypto_md5_init(void);
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FREERDP_API void crypto_md5_update(CryptoMd5 md5, const BYTE* data, UINT32 length);
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FREERDP_API void crypto_md5_final(CryptoMd5 md5, BYTE* out_data);
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typedef struct crypto_rc4_struct* CryptoRc4;
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FREERDP_API CryptoRc4 crypto_rc4_init(const BYTE* key, UINT32 length);
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FREERDP_API void crypto_rc4(CryptoRc4 rc4, UINT32 length, const BYTE* in_data, BYTE* out_data);
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FREERDP_API void crypto_rc4_free(CryptoRc4 rc4);
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typedef struct crypto_des3_struct* CryptoDes3;
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FREERDP_API CryptoDes3 crypto_des3_encrypt_init(const BYTE* key, const BYTE* ivec);
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FREERDP_API CryptoDes3 crypto_des3_decrypt_init(const BYTE* key, const BYTE* ivec);
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FREERDP_API void crypto_des3_encrypt(CryptoDes3 des3, UINT32 length, const BYTE *in_data, BYTE *out_data);
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FREERDP_API void crypto_des3_decrypt(CryptoDes3 des3, UINT32 length, const BYTE *in_data, BYTE* out_data);
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FREERDP_API void crypto_des3_free(CryptoDes3 des3);
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typedef struct crypto_hmac_struct* CryptoHmac;
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FREERDP_API CryptoHmac crypto_hmac_new(void);
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FREERDP_API void crypto_hmac_sha1_init(CryptoHmac hmac, const BYTE *data, UINT32 length);
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FREERDP_API void crypto_hmac_md5_init(CryptoHmac hmac, const BYTE *data, UINT32 length);
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FREERDP_API void crypto_hmac_update(CryptoHmac hmac, const BYTE *data, UINT32 length);
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FREERDP_API void crypto_hmac_final(CryptoHmac hmac, BYTE *out_data, UINT32 length);
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FREERDP_API void crypto_hmac_free(CryptoHmac hmac);
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typedef struct crypto_cert_struct* CryptoCert;
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#include <freerdp/crypto/certificate.h>
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FREERDP_API CryptoCert crypto_cert_read(BYTE* data, UINT32 length);
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FREERDP_API char* crypto_cert_fingerprint(X509* xcert);
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FREERDP_API char* crypto_cert_subject(X509* xcert);
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FREERDP_API char* crypto_cert_subject_common_name(X509* xcert, int* length);
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FREERDP_API char** crypto_cert_subject_alt_name(X509* xcert, int* count,
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int** lengths);
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FREERDP_API void crypto_cert_subject_alt_name_free(int count, int *lengths,
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char** alt_name);
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FREERDP_API char* crypto_cert_issuer(X509* xcert);
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FREERDP_API void crypto_cert_print_info(X509* xcert);
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FREERDP_API void crypto_cert_free(CryptoCert cert);
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FREERDP_API BOOL x509_verify_certificate(CryptoCert cert, char* certificate_store_path);
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FREERDP_API rdpCertificateData* crypto_get_certificate_data(X509* xcert, char* hostname);
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FREERDP_API BOOL crypto_cert_get_public_key(CryptoCert cert, BYTE** PublicKey, DWORD* PublicKeyLength);
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#define TSSK_KEY_LENGTH 64
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extern const BYTE tssk_modulus[];
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extern const BYTE tssk_privateExponent[];
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extern const BYTE tssk_exponent[];
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FREERDP_API int crypto_rsa_public_encrypt(const BYTE* input, int length, UINT32 key_length, const BYTE* modulus, const BYTE* exponent, BYTE* output);
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FREERDP_API int crypto_rsa_public_decrypt(const BYTE* input, int length, UINT32 key_length, const BYTE* modulus, const BYTE* exponent, BYTE* output);
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FREERDP_API int crypto_rsa_private_encrypt(const BYTE* input, int length, UINT32 key_length, const BYTE* modulus, const BYTE* private_exponent, BYTE* output);
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FREERDP_API int crypto_rsa_private_decrypt(const BYTE* input, int length, UINT32 key_length, const BYTE* modulus, const BYTE* private_exponent, BYTE* output);
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FREERDP_API void crypto_reverse(BYTE* data, int length);
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FREERDP_API void crypto_nonce(BYTE* nonce, int size);
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FREERDP_API char* crypto_base64_encode(const BYTE* data, int length);
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FREERDP_API void crypto_base64_decode(const char* enc_data, int length, BYTE** dec_data, int* res_length);
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#endif /* FREERDP_CRYPTO_H */
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