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comparison genrsa.c @ 477:657c045054ab

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Remove workaround forcing rsa mpint to exactly a 8 bits multiple for putty (see http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/rsa-non8mult-verify-fail.html , was fixed in 2004)
author Matt Johnston <matt@ucc.asn.au>
date Fri, 12 Sep 2008 17:48:33 +0000
parents c9483550701b
children b50f0107e505 76097ec1a29a
comparison
equal deleted inserted replaced
474:f33b0898aaa6 477:657c045054ab
60 if (mp_set_int(key->e, RSA_E) != MP_OKAY) { 60 if (mp_set_int(key->e, RSA_E) != MP_OKAY) {
61 fprintf(stderr, "rsa generation failed\n"); 61 fprintf(stderr, "rsa generation failed\n");
62 exit(1); 62 exit(1);
63 } 63 }
64 64
65 /* PuTTY doesn't like it if the modulus isn't a multiple of 8 bits,
66 * so we just generate them until we get one which is OK */
67 getrsaprime(key->p, &pminus, key->e, size/2); 65 getrsaprime(key->p, &pminus, key->e, size/2);
68 do { 66 getrsaprime(key->q, &qminus, key->e, size/2);
69 getrsaprime(key->q, &qminus, key->e, size/2);
70 67
71 if (mp_mul(key->p, key->q, key->n) != MP_OKAY) { 68 if (mp_mul(key->p, key->q, key->n) != MP_OKAY) {
72 fprintf(stderr, "rsa generation failed\n"); 69 fprintf(stderr, "rsa generation failed\n");
73 exit(1); 70 exit(1);
74 } 71 }
75 } while (mp_count_bits(key->n) % 8 != 0);
76 72
77 /* lcm(p-1, q-1) */ 73 /* lcm(p-1, q-1) */
78 if (mp_lcm(&pminus, &qminus, &lcm) != MP_OKAY) { 74 if (mp_lcm(&pminus, &qminus, &lcm) != MP_OKAY) {
79 fprintf(stderr, "rsa generation failed\n"); 75 fprintf(stderr, "rsa generation failed\n");
80 exit(1); 76 exit(1);