/* * Copyright (C) 2013 Marc Hoersken * All rights reserved. * * Redistribution and use in source and binary forms, * with or without modification, are permitted provided * that the following conditions are met: * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * Neither the name of the copyright holder nor the names * of any other contributors may be used to endorse or * promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY * OF SUCH DAMAGE. */ #undef _WIN32_WINNT #define _WIN32_WINNT 0x0600 #ifdef HAVE_WINDOWS_H #include #endif #ifdef HAVE_NTDEF_H #include #endif #ifdef HAVE_NTSTATUS_H #include #endif #include #define LIBSSH2_MD5 1 #define LIBSSH2_HMAC_RIPEMD 0 #define LIBSSH2_AES 1 #define LIBSSH2_AES_CTR 0 #define LIBSSH2_BLOWFISH 0 #define LIBSSH2_RC4 1 #define LIBSSH2_CAST 0 #define LIBSSH2_3DES 1 #define LIBSSH2_RSA 1 #define LIBSSH2_DSA 1 #define MD5_DIGEST_LENGTH 16 #define SHA_DIGEST_LENGTH 20 /*******************************************************************/ /* * Windows CNG backend: Global context handles */ struct _libssh2_wincng_ctx { BCRYPT_ALG_HANDLE hAlgRNG; BCRYPT_ALG_HANDLE hAlgHashMD5; BCRYPT_ALG_HANDLE hAlgHashSHA1; BCRYPT_ALG_HANDLE hAlgHmacMD5; BCRYPT_ALG_HANDLE hAlgHmacSHA1; BCRYPT_ALG_HANDLE hAlgRSA; BCRYPT_ALG_HANDLE hAlgDSA; BCRYPT_ALG_HANDLE hAlgAES_CBC; BCRYPT_ALG_HANDLE hAlgRC4_NA; BCRYPT_ALG_HANDLE hAlg3DES_CBC; }; struct _libssh2_wincng_ctx _libssh2_wincng; /*******************************************************************/ /* * Windows CNG backend: Generic functions */ void _libssh2_wincng_init(void); void _libssh2_wincng_free(void); #define libssh2_crypto_init() \ _libssh2_wincng_init() #define libssh2_crypto_exit() \ _libssh2_wincng_free() #define _libssh2_random(buf, len) \ _libssh2_wincng_random(buf, len) /*******************************************************************/ /* * Windows CNG backend: Hash structure */ struct _libssh2_wincng_hash_ctx { BCRYPT_HASH_HANDLE hHash; unsigned char *pbHashObject; unsigned long dwHashObject; unsigned long cbHash; }; #define _libssh2_wincng_hash_ctx struct _libssh2_wincng_hash_ctx /* * Windows CNG backend: Hash functions */ #define libssh2_sha1_ctx _libssh2_wincng_hash_ctx #define libssh2_sha1_init(ctx) \ _libssh2_wincng_hash_init(ctx, _libssh2_wincng.hAlgHashSHA1, \ SHA_DIGEST_LENGTH, NULL, 0) #define libssh2_sha1_update(ctx, data, datalen) \ _libssh2_wincng_hash_update(&ctx, data, datalen) #define libssh2_sha1_final(ctx, hash) \ _libssh2_wincng_hash_final(&ctx, hash) #define libssh2_sha1(data, datalen, hash) \ _libssh2_wincng_hash(data, datalen, _libssh2_wincng.hAlgHashSHA1, \ hash, SHA_DIGEST_LENGTH) #define libssh2_md5_ctx _libssh2_wincng_hash_ctx #define libssh2_md5_init(ctx) \ _libssh2_wincng_hash_init(ctx, _libssh2_wincng.hAlgHashMD5, \ MD5_DIGEST_LENGTH, NULL, 0) #define libssh2_md5_update(ctx, data, datalen) \ _libssh2_wincng_hash_update(&ctx, data, datalen) #define libssh2_md5_final(ctx, hash) \ _libssh2_wincng_hash_final(&ctx, hash) #define libssh2_md5(data, datalen, hash) \ _libssh2_wincng_hash(data, datalen, _libssh2_wincng.hAlgHashMD5, \ hash, MD5_DIGEST_LENGTH) /* * Windows CNG backend: HMAC functions */ #define libssh2_hmac_ctx _libssh2_wincng_hash_ctx #define libssh2_hmac_sha1_init(ctx, key, keylen) \ _libssh2_wincng_hash_init(ctx, _libssh2_wincng.hAlgHmacSHA1, \ SHA_DIGEST_LENGTH, key, keylen) #define libssh2_hmac_md5_init(ctx, key, keylen) \ _libssh2_wincng_hash_init(ctx, _libssh2_wincng.hAlgHmacMD5, \ MD5_DIGEST_LENGTH, key, keylen) #define libssh2_hmac_ripemd160_init(ctx, key, keylen) /* not implemented */ #define libssh2_hmac_update(ctx, data, datalen) \ _libssh2_wincng_hash_update(&ctx, data, datalen) #define libssh2_hmac_final(ctx, hash) \ _libssh2_wincng_hmac_final(&ctx, hash) #define libssh2_hmac_cleanup(ctx) \ _libssh2_wincng_hmac_cleanup(ctx) /*******************************************************************/ /* * Windows CNG backend: Key Context structure */ struct _libssh2_wincng_key_ctx { BCRYPT_KEY_HANDLE hKey; unsigned char *pbKeyObject; unsigned long cbKeyObject; }; #define _libssh2_wincng_key_ctx struct _libssh2_wincng_key_ctx /* * Windows CNG backend: RSA functions */ #define libssh2_rsa_ctx _libssh2_wincng_key_ctx #define _libssh2_rsa_new(rsactx, e, e_len, n, n_len, \ d, d_len, p, p_len, q, q_len, \ e1, e1_len, e2, e2_len, c, c_len) \ _libssh2_wincng_rsa_new(rsactx, e, e_len, n, n_len, \ d, d_len, p, p_len, q, q_len, \ e1, e1_len, e2, e2_len, c, c_len) #define _libssh2_rsa_new_private(rsactx, s, filename, passphrase) \ _libssh2_wincng_rsa_new_private(rsactx, s, filename, passphrase) #define _libssh2_rsa_sha1_sign(s, rsactx, hash, hash_len, sig, sig_len) \ _libssh2_wincng_rsa_sha1_sign(s, rsactx, hash, hash_len, sig, sig_len) #define _libssh2_rsa_sha1_verify(rsactx, sig, sig_len, m, m_len) \ _libssh2_wincng_rsa_sha1_verify(rsactx, sig, sig_len, m, m_len) #define _libssh2_rsa_free(rsactx) \ _libssh2_wincng_rsa_free(rsactx) /* * Windows CNG backend: DSA functions */ #define libssh2_dsa_ctx _libssh2_wincng_key_ctx #define _libssh2_dsa_new(dsactx, p, p_len, q, q_len, \ g, g_len, y, y_len, x, x_len) \ _libssh2_wincng_dsa_new(dsactx, p, p_len, q, q_len, \ g, g_len, y, y_len, x, x_len) #define _libssh2_dsa_new_private(rsactx, s, filename, passphrase) \ _libssh2_wincng_dsa_new_private(rsactx, s, filename, passphrase) #define _libssh2_dsa_sha1_sign(dsactx, hash, hash_len, sig) \ _libssh2_wincng_dsa_sha1_sign(dsactx, hash, hash_len, sig) #define _libssh2_dsa_sha1_verify(dsactx, sig, m, m_len) \ _libssh2_wincng_dsa_sha1_verify(dsactx, sig, m, m_len) #define _libssh2_dsa_free(dsactx) \ _libssh2_wincng_dsa_free(dsactx) /* * Windows CNG backend: Key functions */ #define _libssh2_pub_priv_keyfile(s, m, m_len, p, p_len, pk, pw) \ _libssh2_wincng_pub_priv_keyfile(s, m, m_len, p, p_len, pk, pw) /*******************************************************************/ /* * Windows CNG backend: Cipher Context structure */ struct _libssh2_wincng_cipher_ctx { BCRYPT_KEY_HANDLE hKey; unsigned char *pbKeyObject; unsigned char *pbIV; unsigned long dwKeyObject; unsigned long dwIV; unsigned long dwBlockLength; }; #define _libssh2_cipher_ctx struct _libssh2_wincng_cipher_ctx /* * Windows CNG backend: Cipher Type structure */ struct _libssh2_wincng_cipher_type { BCRYPT_ALG_HANDLE *phAlg; unsigned long dwKeyLength; unsigned long dwUseIV; }; #define _libssh2_cipher_type(type) struct _libssh2_wincng_cipher_type type #define _libssh2_cipher_aes256ctr { NULL, 32, 1 } /* not supported */ #define _libssh2_cipher_aes192ctr { NULL, 24, 1 } /* not supported */ #define _libssh2_cipher_aes128ctr { NULL, 16, 1 } /* not supported */ #define _libssh2_cipher_aes256 { &_libssh2_wincng.hAlgAES_CBC, 32, 1 } #define _libssh2_cipher_aes192 { &_libssh2_wincng.hAlgAES_CBC, 24, 1 } #define _libssh2_cipher_aes128 { &_libssh2_wincng.hAlgAES_CBC, 16, 1 } #define _libssh2_cipher_blowfish { NULL, 16, 0 } /* not supported */ #define _libssh2_cipher_arcfour { &_libssh2_wincng.hAlgRC4_NA, 16, 0 } #define _libssh2_cipher_cast5 { NULL, 16, 0 } /* not supported */ #define _libssh2_cipher_3des { &_libssh2_wincng.hAlg3DES_CBC, 24, 1 } /* * Windows CNG backend: Cipher functions */ #define _libssh2_cipher_init(ctx, type, iv, secret, encrypt) \ _libssh2_wincng_cipher_init(ctx, type, iv, secret, encrypt) #define _libssh2_cipher_crypt(ctx, type, encrypt, block, blocklen) \ _libssh2_wincng_cipher_crypt(ctx, type, encrypt, block, blocklen) #define _libssh2_cipher_dtor(ctx) \ _libssh2_wincng_cipher_dtor(ctx) /*******************************************************************/ /* * Windows CNG backend: BigNumber Context */ #define _libssh2_bn_ctx int /* not used */ #define _libssh2_bn_ctx_new() 0 /* not used */ #define _libssh2_bn_ctx_free(bnctx) ((void)0) /* not used */ /*******************************************************************/ /* * Windows CNG backend: BigNumber structure */ struct _libssh2_wincng_bignum { unsigned char *bignum; unsigned long length; }; #define _libssh2_bn struct _libssh2_wincng_bignum /* * Windows CNG backend: BigNumber functions */ _libssh2_bn *_libssh2_wincng_bignum_init(void); #define _libssh2_bn_init() \ _libssh2_wincng_bignum_init() #define _libssh2_bn_rand(bn, bits, top, bottom) \ _libssh2_wincng_bignum_rand(bn, bits, top, bottom) #define _libssh2_bn_mod_exp(r, a, p, m, ctx) \ _libssh2_wincng_bignum_mod_exp(r, a, p, m, ctx) #define _libssh2_bn_set_word(bn, word) \ _libssh2_wincng_bignum_set_word(bn, word) #define _libssh2_bn_from_bin(bn, len, bin) \ _libssh2_wincng_bignum_from_bin(bn, len, bin) #define _libssh2_bn_to_bin(bn, bin) \ _libssh2_wincng_bignum_to_bin(bn, bin) #define _libssh2_bn_bytes(bn) bn->length #define _libssh2_bn_bits(bn) \ _libssh2_wincng_bignum_bits(bn) #define _libssh2_bn_free(bn) \ _libssh2_wincng_bignum_free(bn)