openssl/crypto/evp/e_xcbc_d.c - Issue 2072073002: Delete bundled copy of OpenSSL and replace with README.

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Issue 2072073002: Delete bundled copy of OpenSSL and replace with README. (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master

Patch Set: Delete bundled copy of OpenSSL and replace with README. Created 4 years, 6 months ago

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1 /* crypto/evp/e_xcbc_d.c */

2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)

3 * All rights reserved.

4 *

5 * This package is an SSL implementation written

6 * by Eric Young (eay@cryptsoft.com).

7 * The implementation was written so as to conform with Netscapes SSL.

8 *

9 * This library is free for commercial and non-commercial use as long as

10 * the following conditions are aheared to. The following conditions

11 * apply to all code found in this distribution, be it the RC4, RSA,

12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation

13 * included with this distribution is covered by the same copyright terms

14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).

15 *

16 * Copyright remains Eric Young's, and as such any Copyright notices in

17 * the code are not to be removed.

18 * If this package is used in a product, Eric Young should be given attribution

19 * as the author of the parts of the library used.

20 * This can be in the form of a textual message at program startup or

21 * in documentation (online or textual) provided with the package.

22 *

23 * Redistribution and use in source and binary forms, with or without

24 * modification, are permitted provided that the following conditions

25 * are met:

26 * 1. Redistributions of source code must retain the copyright

27 * notice, this list of conditions and the following disclaimer.

28 * 2. Redistributions in binary form must reproduce the above copyright

29 * notice, this list of conditions and the following disclaimer in the

30 * documentation and/or other materials provided with the distribution.

31 * 3. All advertising materials mentioning features or use of this software

32 * must display the following acknowledgement:

33 * "This product includes cryptographic software written by

34 * Eric Young (eay@cryptsoft.com)"

35 * The word 'cryptographic' can be left out if the rouines from the library

36 * being used are not cryptographic related :-).

37 * 4. If you include any Windows specific code (or a derivative thereof) from

38 * the apps directory (application code) you must include an acknowledgement:

39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"

40 *

41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND

42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

51 * SUCH DAMAGE.

52 *

53 * The licence and distribution terms for any publically available version or

54 * derivative of this code cannot be changed. i.e. this code cannot simply be

55 * copied and put under another distribution licence

56 * [including the GNU Public Licence.]

57 */

58

59 #include <stdio.h>

60 #include "cryptlib.h"

61

62 #ifndef OPENSSL_NO_DES

63

64 #include <openssl/evp.h>

65 #include <openssl/objects.h>

66 #include "evp_locl.h"

67 #include <openssl/des.h>

68

69 static int desx_cbc_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,

70 const unsigned char *iv,int enc);

71 static int desx_cbc_cipher(EVP_CIPHER_CTX ctx, unsigned char out,

72 const unsigned char *in, size_t inl);

73

74

75 typedef struct

76 {

77 DES_key_schedule ks;/* key schedule */

78 DES_cblock inw;

79 DES_cblock outw;

80 } DESX_CBC_KEY;

81

82 #define data(ctx) ((DESX_CBC_KEY *)(ctx)->cipher_data)

83

84 static const EVP_CIPHER d_xcbc_cipher=

85 {

86 NID_desx_cbc,

87 8,24,8,

88 EVP_CIPH_CBC_MODE,

89 desx_cbc_init_key,

90 desx_cbc_cipher,

91 NULL,

92 sizeof(DESX_CBC_KEY),

93 EVP_CIPHER_set_asn1_iv,

94 EVP_CIPHER_get_asn1_iv,

95 NULL,

96 NULL

97 };

98

99 const EVP_CIPHER *EVP_desx_cbc(void)

100 {

101 return(&d_xcbc_cipher);

102 }

103

104 static int desx_cbc_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,

105 const unsigned char *iv, int enc)

106 {

107 DES_cblock deskey = (DES_cblock )key;

108

109 DES_set_key_unchecked(deskey,&data(ctx)->ks);

110 memcpy(&data(ctx)->inw[0],&key[8],8);

111 memcpy(&data(ctx)->outw[0],&key[16],8);

112

113 return 1;

114 }

115

116 static int desx_cbc_cipher(EVP_CIPHER_CTX ctx, unsigned char out,

117 const unsigned char *in, size_t inl)

118 {

119 while (inl>=EVP_MAXCHUNK)

120 {

121 DES_xcbc_encrypt(in,out,(long)EVP_MAXCHUNK,&data(ctx)->ks,

122 (DES_cblock *)&(ctx->iv[0]),

123 &data(ctx)->inw,

124 &data(ctx)->outw,

125 ctx->encrypt);

126 inl-=EVP_MAXCHUNK;

127 in +=EVP_MAXCHUNK;

128 out+=EVP_MAXCHUNK;

129 }

130 if (inl)

131 DES_xcbc_encrypt(in,out,(long)inl,&data(ctx)->ks,

132 (DES_cblock *)&(ctx->iv[0]),

133 &data(ctx)->inw,

134 &data(ctx)->outw,

135 ctx->encrypt);

136 return 1;

137 }

138 #endif

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