openssl/crypto/evp/p5_crpt.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 /* p5_crpt.c */

2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL

3 * project 1999.

4 */

5 /* ====================================================================

6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.

7 *

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

9 * modification, are permitted provided that the following conditions

10 * are met:

11 *

12 * 1. Redistributions of source code must retain the above copyright

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

14 *

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

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

17 * the documentation and/or other materials provided with the

18 * distribution.

19 *

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

21 * software must display the following acknowledgment:

22 * "This product includes software developed by the OpenSSL Project

23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"

24 *

25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to

26 * endorse or promote products derived from this software without

27 * prior written permission. For written permission, please contact

28 * licensing@OpenSSL.org.

29 *

30 * 5. Products derived from this software may not be called "OpenSSL"

31 * nor may "OpenSSL" appear in their names without prior written

32 * permission of the OpenSSL Project.

33 *

34 * 6. Redistributions of any form whatsoever must retain the following

35 * acknowledgment:

36 * "This product includes software developed by the OpenSSL Project

37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"

38 *

39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR

43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

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

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

48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

50 * OF THE POSSIBILITY OF SUCH DAMAGE.

51 * ====================================================================

52 *

53 * This product includes cryptographic software written by Eric Young

54 * (eay@cryptsoft.com). This product includes software written by Tim

55 * Hudson (tjh@cryptsoft.com).

56 *

57 */

58

59 #include <stdio.h>

60 #include <stdlib.h>

61 #include "cryptlib.h"

62 #include <openssl/x509.h>

63 #include <openssl/evp.h>

64

65 /* Doesn't do anything now: Builtin PBE algorithms in static table.

66 */

67

68 void PKCS5_PBE_add(void)

69 {

70 }

71

72 int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX cctx, const char pass, int passlen,

73 ASN1_TYPE param, const EVP_CIPHER cipher, const EVP_M D *md,

74 int en_de)

75 {

76 EVP_MD_CTX ctx;

77 unsigned char md_tmp[EVP_MAX_MD_SIZE];

78 unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];

79 int i;

80 PBEPARAM *pbe;

81 int saltlen, iter;

82 unsigned char *salt;

83 const unsigned char *pbuf;

84 int mdsize;

85 int rv = 0;

86 EVP_MD_CTX_init(&ctx);

87

88 /* Extract useful info from parameter */

89 if (param == NULL \|\| param->type != V_ASN1_SEQUENCE \|\|

90 param->value.sequence == NULL) {

91 EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN,EVP_R_DECODE_ERROR);

92 return 0;

93 }

94

95 pbuf = param->value.sequence->data;

96 if (!(pbe = d2i_PBEPARAM(NULL, &pbuf, param->value.sequence->length))) {

97 EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN,EVP_R_DECODE_ERROR);

98 return 0;

99 }

100

101 if (!pbe->iter) iter = 1;

102 else iter = ASN1_INTEGER_get (pbe->iter);

103 salt = pbe->salt->data;

104 saltlen = pbe->salt->length;

105

106 if(!pass) passlen = 0;

107 else if(passlen == -1) passlen = strlen(pass);

108

109 if (!EVP_DigestInit_ex(&ctx, md, NULL))

110 goto err;

111 if (!EVP_DigestUpdate(&ctx, pass, passlen))

112 goto err;

113 if (!EVP_DigestUpdate(&ctx, salt, saltlen))

114 goto err;

115 PBEPARAM_free(pbe);

116 if (!EVP_DigestFinal_ex(&ctx, md_tmp, NULL))

117 goto err;

118 mdsize = EVP_MD_size(md);

119 if (mdsize < 0)

120 return 0;

121 for (i = 1; i < iter; i++) {

122 if (!EVP_DigestInit_ex(&ctx, md, NULL))

123 goto err;

124 if (!EVP_DigestUpdate(&ctx, md_tmp, mdsize))

125 goto err;

126 if (!EVP_DigestFinal_ex (&ctx, md_tmp, NULL))

127 goto err;

128 }

129 OPENSSL_assert(EVP_CIPHER_key_length(cipher) <= (int)sizeof(md_tmp));

130 memcpy(key, md_tmp, EVP_CIPHER_key_length(cipher));

131 OPENSSL_assert(EVP_CIPHER_iv_length(cipher) <= 16);

132 memcpy(iv, md_tmp + (16 - EVP_CIPHER_iv_length(cipher)),

133 EVP_CIPHER_iv_length(cipher));

134 if (!EVP_CipherInit_ex(cctx, cipher, NULL, key, iv, en_de))

135 goto err;

136 OPENSSL_cleanse(md_tmp, EVP_MAX_MD_SIZE);

137 OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);

138 OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);

139 rv = 1;

140 err:

141 EVP_MD_CTX_cleanup(&ctx);

142 return rv;

143 }

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