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author | green <green@FreeBSD.org> | 2001-05-04 03:57:05 +0000 |
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committer | green <green@FreeBSD.org> | 2001-05-04 03:57:05 +0000 |
commit | 8acd87ac472a182ef2d717212f2c0faba81143a5 (patch) | |
tree | 8070a266de2673f242df1ac3c19ad277bbd7e0f6 /crypto/openssh/rsa.c | |
parent | 5bcde1229c897d3a1ecba9ae48d888c773877ad9 (diff) | |
download | FreeBSD-src-8acd87ac472a182ef2d717212f2c0faba81143a5.zip FreeBSD-src-8acd87ac472a182ef2d717212f2c0faba81143a5.tar.gz |
Say "hi" to the latest in the OpenSSH series, version 2.9!
Happy birthday to: rwatson
Diffstat (limited to 'crypto/openssh/rsa.c')
-rw-r--r-- | crypto/openssh/rsa.c | 109 |
1 files changed, 28 insertions, 81 deletions
diff --git a/crypto/openssh/rsa.c b/crypto/openssh/rsa.c index e5cddc2..f69f996 100644 --- a/crypto/openssh/rsa.c +++ b/crypto/openssh/rsa.c @@ -8,7 +8,7 @@ * software must be clearly marked as such, and if the derived work is * incompatible with the protocol description in the RFC file, it must be * called by a name other than "ssh" or "Secure Shell". - * + * * * Copyright (c) 1999 Niels Provos. All rights reserved. * @@ -60,82 +60,16 @@ */ #include "includes.h" -RCSID("$OpenBSD: rsa.c,v 1.16 2000/09/07 20:27:53 deraadt Exp $"); +RCSID("$OpenBSD: rsa.c,v 1.22 2001/03/26 23:23:23 markus Exp $"); #include "rsa.h" -#include "ssh.h" +#include "log.h" #include "xmalloc.h" -int rsa_verbose = 1; - -int -rsa_alive() -{ - RSA *key; - - key = RSA_generate_key(32, 3, NULL, NULL); - if (key == NULL) - return (0); - RSA_free(key); - return (1); -} - -/* - * Generates RSA public and private keys. This initializes the data - * structures; they should be freed with rsa_clear_private_key and - * rsa_clear_public_key. - */ - -void -rsa_generate_key(RSA *prv, RSA *pub, unsigned int bits) -{ - RSA *key; - - if (rsa_verbose) { - printf("Generating RSA keys: "); - fflush(stdout); - } - key = RSA_generate_key(bits, 35, NULL, NULL); - if (key == NULL) - fatal("rsa_generate_key: key generation failed."); - - /* Copy public key parameters */ - pub->n = BN_new(); - BN_copy(pub->n, key->n); - pub->e = BN_new(); - BN_copy(pub->e, key->e); - - /* Copy private key parameters */ - prv->n = BN_new(); - BN_copy(prv->n, key->n); - prv->e = BN_new(); - BN_copy(prv->e, key->e); - prv->d = BN_new(); - BN_copy(prv->d, key->d); - prv->p = BN_new(); - BN_copy(prv->p, key->p); - prv->q = BN_new(); - BN_copy(prv->q, key->q); - - prv->dmp1 = BN_new(); - BN_copy(prv->dmp1, key->dmp1); - - prv->dmq1 = BN_new(); - BN_copy(prv->dmq1, key->dmq1); - - prv->iqmp = BN_new(); - BN_copy(prv->iqmp, key->iqmp); - - RSA_free(key); - - if (rsa_verbose) - printf("Key generation complete.\n"); -} - void rsa_public_encrypt(BIGNUM *out, BIGNUM *in, RSA *key) { - unsigned char *inbuf, *outbuf; + u_char *inbuf, *outbuf; int len, ilen, olen; if (BN_num_bits(key->e) < 2 || !BN_is_odd(key->e)) @@ -160,10 +94,10 @@ rsa_public_encrypt(BIGNUM *out, BIGNUM *in, RSA *key) xfree(inbuf); } -void +int rsa_private_decrypt(BIGNUM *out, BIGNUM *in, RSA *key) { - unsigned char *inbuf, *outbuf; + u_char *inbuf, *outbuf; int len, ilen, olen; olen = BN_num_bytes(key->n); @@ -174,21 +108,34 @@ rsa_private_decrypt(BIGNUM *out, BIGNUM *in, RSA *key) BN_bn2bin(in, inbuf); if ((len = RSA_private_decrypt(ilen, inbuf, outbuf, key, - RSA_PKCS1_PADDING)) <= 0) - fatal("rsa_private_decrypt() failed"); - - BN_bin2bn(outbuf, len, out); - + RSA_PKCS1_PADDING)) <= 0) { + error("rsa_private_decrypt() failed"); + } else { + BN_bin2bn(outbuf, len, out); + } memset(outbuf, 0, olen); memset(inbuf, 0, ilen); xfree(outbuf); xfree(inbuf); + return len; } -/* Set whether to output verbose messages during key generation. */ - void -rsa_set_verbose(int verbose) +generate_additional_parameters(RSA *rsa) { - rsa_verbose = verbose; + BIGNUM *aux; + BN_CTX *ctx; + /* Generate additional parameters */ + aux = BN_new(); + ctx = BN_CTX_new(); + + BN_sub(aux, rsa->q, BN_value_one()); + BN_mod(rsa->dmq1, rsa->d, aux, ctx); + + BN_sub(aux, rsa->p, BN_value_one()); + BN_mod(rsa->dmp1, rsa->d, aux, ctx); + + BN_clear_free(aux); + BN_CTX_free(ctx); } + |