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sdiff udiff text old ( 162856 ) new ( 164149 )
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rsa.c (162856) rsa.c (164149)
1/* $OpenBSD: rsa.c,v 1.28 2006/08/03 03:34:42 deraadt Exp $ */
1/* $OpenBSD: rsa.c,v 1.29 2006/11/06 21:25:28 markus Exp $ */
2/*
3 * Author: Tatu Ylonen <ylo@cs.hut.fi>
4 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5 * All rights reserved
6 *
7 * As far as I am concerned, the code I have written for this software
8 * can be used freely for any purpose. Any derived versions of this
9 * software must be clearly marked as such, and if the derived work is

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86 ilen = BN_num_bytes(in);
87 inbuf = xmalloc(ilen);
88 BN_bn2bin(in, inbuf);
89
90 if ((len = RSA_public_encrypt(ilen, inbuf, outbuf, key,
91 RSA_PKCS1_PADDING)) <= 0)
92 fatal("rsa_public_encrypt() failed");
93
2/*
3 * Author: Tatu Ylonen <ylo@cs.hut.fi>
4 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5 * All rights reserved
6 *
7 * As far as I am concerned, the code I have written for this software
8 * can be used freely for any purpose. Any derived versions of this
9 * software must be clearly marked as such, and if the derived work is

--- 76 unchanged lines hidden (view full) ---

86 ilen = BN_num_bytes(in);
87 inbuf = xmalloc(ilen);
88 BN_bn2bin(in, inbuf);
89
90 if ((len = RSA_public_encrypt(ilen, inbuf, outbuf, key,
91 RSA_PKCS1_PADDING)) <= 0)
92 fatal("rsa_public_encrypt() failed");
93
94 BN_bin2bn(outbuf, len, out);
94 if (BN_bin2bn(outbuf, len, out) == NULL)
95 fatal("rsa_public_encrypt: BN_bin2bn failed");
95
96 memset(outbuf, 0, olen);
97 memset(inbuf, 0, ilen);
98 xfree(outbuf);
99 xfree(inbuf);
100}
101
102int

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111 ilen = BN_num_bytes(in);
112 inbuf = xmalloc(ilen);
113 BN_bn2bin(in, inbuf);
114
115 if ((len = RSA_private_decrypt(ilen, inbuf, outbuf, key,
116 RSA_PKCS1_PADDING)) <= 0) {
117 error("rsa_private_decrypt() failed");
118 } else {
96
97 memset(outbuf, 0, olen);
98 memset(inbuf, 0, ilen);
99 xfree(outbuf);
100 xfree(inbuf);
101}
102
103int

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112 ilen = BN_num_bytes(in);
113 inbuf = xmalloc(ilen);
114 BN_bn2bin(in, inbuf);
115
116 if ((len = RSA_private_decrypt(ilen, inbuf, outbuf, key,
117 RSA_PKCS1_PADDING)) <= 0) {
118 error("rsa_private_decrypt() failed");
119 } else {
119 BN_bin2bn(outbuf, len, out);
120 if (BN_bin2bn(outbuf, len, out) == NULL)
121 fatal("rsa_private_decrypt: BN_bin2bn failed");
120 }
121 memset(outbuf, 0, olen);
122 memset(inbuf, 0, ilen);
123 xfree(outbuf);
124 xfree(inbuf);
125 return len;
126}
127

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132 BIGNUM *aux;
133 BN_CTX *ctx;
134
135 if ((aux = BN_new()) == NULL)
136 fatal("rsa_generate_additional_parameters: BN_new failed");
137 if ((ctx = BN_CTX_new()) == NULL)
138 fatal("rsa_generate_additional_parameters: BN_CTX_new failed");
139
122 }
123 memset(outbuf, 0, olen);
124 memset(inbuf, 0, ilen);
125 xfree(outbuf);
126 xfree(inbuf);
127 return len;
128}
129

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134 BIGNUM *aux;
135 BN_CTX *ctx;
136
137 if ((aux = BN_new()) == NULL)
138 fatal("rsa_generate_additional_parameters: BN_new failed");
139 if ((ctx = BN_CTX_new()) == NULL)
140 fatal("rsa_generate_additional_parameters: BN_CTX_new failed");
141
140 BN_sub(aux, rsa->q, BN_value_one());
141 BN_mod(rsa->dmq1, rsa->d, aux, ctx);
142 if ((BN_sub(aux, rsa->q, BN_value_one()) == 0) ||
143 (BN_mod(rsa->dmq1, rsa->d, aux, ctx) == 0) ||
144 (BN_sub(aux, rsa->p, BN_value_one()) == 0) ||
145 (BN_mod(rsa->dmp1, rsa->d, aux, ctx) == 0))
146 fatal("rsa_generate_additional_parameters: BN_sub/mod failed");
142
147
143 BN_sub(aux, rsa->p, BN_value_one());
144 BN_mod(rsa->dmp1, rsa->d, aux, ctx);
145
146 BN_clear_free(aux);
147 BN_CTX_free(ctx);
148}
149
148 BN_clear_free(aux);
149 BN_CTX_free(ctx);
150}
151