--- vfdecrypt.c.orig 2010-03-24 17:52:45 UTC +++ vfdecrypt.c @@ -183,7 +183,11 @@ void adjust_v2_header_byteorder(cencrypt pwhdr->encrypted_keyblob_size = htonl(pwhdr->encrypted_keyblob_size); } +#if OPENSSL_VERSION_NUMBER >= 0x10100000L +HMAC_CTX *hmacsha1_ctx = NULL; +#else HMAC_CTX hmacsha1_ctx; +#endif AES_KEY aes_decrypt_key; int CHUNK_SIZE=4096; // default @@ -196,9 +200,15 @@ void compute_iv(uint32_t chunk_no, uint8 unsigned int mdLen; chunk_no = OSSwapHostToBigInt32(chunk_no); +#if OPENSSL_VERSION_NUMBER >= 0x10100000L + HMAC_Init_ex(hmacsha1_ctx, NULL, 0, NULL, NULL); + HMAC_Update(hmacsha1_ctx, (void *) &chunk_no, sizeof(uint32_t)); + HMAC_Final(hmacsha1_ctx, mdResult, &mdLen); +#else HMAC_Init_ex(&hmacsha1_ctx, NULL, 0, NULL, NULL); HMAC_Update(&hmacsha1_ctx, (void *) &chunk_no, sizeof(uint32_t)); HMAC_Final(&hmacsha1_ctx, mdResult, &mdLen); +#endif memcpy(iv, mdResult, CIPHER_BLOCKSIZE); } @@ -212,47 +222,84 @@ void decrypt_chunk(uint8_t *ctext, uint8 /* DES3-EDE unwrap operation loosely based on to RFC 2630, section 12.6 * wrapped_key has to be 40 bytes in length. */ int apple_des3_ede_unwrap_key(uint8_t *wrapped_key, int wrapped_key_len, uint8_t *decryptKey, uint8_t *unwrapped_key) { +#if OPENSSL_VERSION_NUMBER >= 0x10100000L + EVP_CIPHER_CTX *ctx = NULL; +#else EVP_CIPHER_CTX ctx; +#endif uint8_t *TEMP1, *TEMP2, *CEKICV; uint8_t IV[8] = { 0x4a, 0xdd, 0xa2, 0x2c, 0x79, 0xe8, 0x21, 0x05 }; int outlen, tmplen, i; +#if OPENSSL_VERSION_NUMBER >= 0x10100000L + ctx = EVP_CIPHER_CTX_new(); +#else EVP_CIPHER_CTX_init(&ctx); +#endif /* result of the decryption operation shouldn't be bigger than ciphertext */ TEMP1 = malloc(wrapped_key_len); TEMP2 = malloc(wrapped_key_len); CEKICV = malloc(wrapped_key_len); /* uses PKCS#7 padding for symmetric key operations by default */ +#if OPENSSL_VERSION_NUMBER >= 0x10100000L + EVP_DecryptInit_ex(ctx, EVP_des_ede3_cbc(), NULL, decryptKey, IV); + if(!EVP_DecryptUpdate(ctx, TEMP1, &outlen, wrapped_key, wrapped_key_len)) { +#else EVP_DecryptInit_ex(&ctx, EVP_des_ede3_cbc(), NULL, decryptKey, IV); - if(!EVP_DecryptUpdate(&ctx, TEMP1, &outlen, wrapped_key, wrapped_key_len)) { +#endif fprintf(stderr, "internal error (1) during key unwrap operation!\n"); return(-1); } +#if OPENSSL_VERSION_NUMBER >= 0x10100000L + if(!EVP_DecryptFinal_ex(ctx, TEMP1 + outlen, &tmplen)) { +#else if(!EVP_DecryptFinal_ex(&ctx, TEMP1 + outlen, &tmplen)) { +#endif fprintf(stderr, "internal error (2) during key unwrap operation!\n"); return(-1); } outlen += tmplen; +#if OPENSSL_VERSION_NUMBER >= 0x10100000L + EVP_CIPHER_CTX_free(ctx); +#else EVP_CIPHER_CTX_cleanup(&ctx); +#endif /* reverse order of TEMP3 */ for(i = 0; i < outlen; i++) TEMP2[i] = TEMP1[outlen - i - 1]; +#if OPENSSL_VERSION_NUMBER >= 0x10100000L + ctx = EVP_CIPHER_CTX_new(); +#else EVP_CIPHER_CTX_init(&ctx); +#endif /* uses PKCS#7 padding for symmetric key operations by default */ +#if OPENSSL_VERSION_NUMBER >= 0x10100000L + EVP_DecryptInit_ex(ctx, EVP_des_ede3_cbc(), NULL, decryptKey, TEMP2); + if(!EVP_DecryptUpdate(ctx, CEKICV, &outlen, TEMP2+8, outlen-8)) { +#else EVP_DecryptInit_ex(&ctx, EVP_des_ede3_cbc(), NULL, decryptKey, TEMP2); if(!EVP_DecryptUpdate(&ctx, CEKICV, &outlen, TEMP2+8, outlen-8)) { +#endif fprintf(stderr, "internal error (3) during key unwrap operation!\n"); return(-1); } +#if OPENSSL_VERSION_NUMBER >= 0x10100000L + if(!EVP_DecryptFinal_ex(ctx, CEKICV + outlen, &tmplen)) { +#else if(!EVP_DecryptFinal_ex(&ctx, CEKICV + outlen, &tmplen)) { +#endif fprintf(stderr, "internal error (4) during key unwrap operation!\n"); return(-1); } outlen += tmplen; +#if OPENSSL_VERSION_NUMBER >= 0x10100000L + EVP_CIPHER_CTX_free(ctx); +#else EVP_CIPHER_CTX_cleanup(&ctx); +#endif memcpy(unwrapped_key, CEKICV+4, outlen-4); free(TEMP1); @@ -279,7 +326,11 @@ int unwrap_v1_header(char *passphrase, c int unwrap_v2_header(char *passphrase, cencrypted_v2_pwheader *header, uint8_t *aes_key, uint8_t *hmacsha1_key) { /* derived key is a 3DES-EDE key */ uint8_t derived_key[192/8]; +#if OPENSSL_VERSION_NUMBER >= 0x10100000L + EVP_CIPHER_CTX *ctx = NULL; +#else EVP_CIPHER_CTX ctx; +#endif uint8_t *TEMP1; int outlen, tmplen; @@ -288,22 +339,40 @@ int unwrap_v2_header(char *passphrase, c print_hex(derived_key, 192/8); +#if OPENSSL_VERSION_NUMBER >= 0x10100000L + ctx = EVP_CIPHER_CTX_new(); +#else EVP_CIPHER_CTX_init(&ctx); +#endif /* result of the decryption operation shouldn't be bigger than ciphertext */ TEMP1 = malloc(header->encrypted_keyblob_size); /* uses PKCS#7 padding for symmetric key operations by default */ +#if OPENSSL_VERSION_NUMBER >= 0x10100000L + EVP_DecryptInit_ex(ctx, EVP_des_ede3_cbc(), NULL, derived_key, header->blob_enc_iv); + + if(!EVP_DecryptUpdate(ctx, TEMP1, &outlen, header->encrypted_keyblob, header->encrypted_keyblob_size)) { +#else EVP_DecryptInit_ex(&ctx, EVP_des_ede3_cbc(), NULL, derived_key, header->blob_enc_iv); if(!EVP_DecryptUpdate(&ctx, TEMP1, &outlen, header->encrypted_keyblob, header->encrypted_keyblob_size)) { +#endif fprintf(stderr, "internal error (1) during key unwrap operation!\n"); return(-1); } +#if OPENSSL_VERSION_NUMBER >= 0x10100000L + if(!EVP_DecryptFinal_ex(ctx, TEMP1 + outlen, &tmplen)) { +#else if(!EVP_DecryptFinal_ex(&ctx, TEMP1 + outlen, &tmplen)) { +#endif fprintf(stderr, "internal error (2) during key unwrap operation!\n"); return(-1); } outlen += tmplen; +#if OPENSSL_VERSION_NUMBER >= 0x10100000L + EVP_CIPHER_CTX_free(ctx); +#else EVP_CIPHER_CTX_cleanup(&ctx); +#endif memcpy(aes_key, TEMP1, 16); memcpy(hmacsha1_key, TEMP1, 20); @@ -446,8 +515,14 @@ int main(int argc, char *argv[]) { CHUNK_SIZE = v2header.blocksize; } +#if OPENSSL_VERSION_NUMBER >= 0x10100000L + hmacsha1_ctx = HMAC_CTX_new(); + HMAC_CTX_reset(hmacsha1_ctx); + HMAC_Init_ex(hmacsha1_ctx, hmacsha1_key, sizeof(hmacsha1_key), EVP_sha1(), NULL); +#else HMAC_CTX_init(&hmacsha1_ctx); HMAC_Init_ex(&hmacsha1_ctx, hmacsha1_key, sizeof(hmacsha1_key), EVP_sha1(), NULL); +#endif AES_set_decrypt_key(aes_key, CIPHER_KEY_LENGTH * 8, &aes_decrypt_key); if (verbose >= 1) {