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Diffstat (limited to 'crypto/openssh/rsa.c')
| -rw-r--r-- | crypto/openssh/rsa.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/crypto/openssh/rsa.c b/crypto/openssh/rsa.c deleted file mode 100644 index 7a2bed69505c0..0000000000000 --- a/crypto/openssh/rsa.c +++ /dev/null @@ -1,177 +0,0 @@ -/* - * - * rsa.c - * - * Author: Tatu Ylonen <ylo@cs.hut.fi> - * - * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland - * All rights reserved - * - * Created: Fri Mar 3 22:07:06 1995 ylo - * - * Description of the RSA algorithm can be found e.g. from the following sources: - * - * Bruce Schneier: Applied Cryptography. John Wiley & Sons, 1994. - * - * Jennifer Seberry and Josed Pieprzyk: Cryptography: An Introduction to - * Computer Security. Prentice-Hall, 1989. - * - * Man Young Rhee: Cryptography and Secure Data Communications. McGraw-Hill, - * 1994. - * - * R. Rivest, A. Shamir, and L. M. Adleman: Cryptographic Communications - * System and Method. US Patent 4,405,829, 1983. - * - * Hans Riesel: Prime Numbers and Computer Methods for Factorization. - * Birkhauser, 1994. - * - * The RSA Frequently Asked Questions document by RSA Data Security, Inc., 1995. - * - * RSA in 3 lines of perl by Adam Back <aba@atlax.ex.ac.uk>, 1995, as included - * below: - * - * [gone - had to be deleted - what a pity] - * - * $FreeBSD$ - * -*/ - -#include "includes.h" -RCSID("$Id: rsa.c,v 1.12 2000/02/21 21:47:31 markus Exp $"); - -#include "rsa.h" -#include "ssh.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) -{ - char *inbuf, *outbuf; - int len, ilen, olen; - - if (BN_num_bits(key->e) < 2 || !BN_is_odd(key->e)) - fatal("rsa_public_encrypt() exponent too small or not odd"); - - olen = BN_num_bytes(key->n); - outbuf = xmalloc(olen); - - ilen = BN_num_bytes(in); - inbuf = xmalloc(ilen); - BN_bn2bin(in, inbuf); - - if ((len = RSA_public_encrypt(ilen, inbuf, outbuf, key, - RSA_PKCS1_PADDING)) <= 0) - if (BN_num_bits(key->n) > 1024 && RSA_libversion() == RSALIB_RSAREF) - fatal("rsa_private_encrypt() failed: RSAREF cannot handle keys larger than 1024 bits."); - else - fatal("rsa_private_encrypt() failed."); - - BN_bin2bn(outbuf, len, out); - - memset(outbuf, 0, olen); - memset(inbuf, 0, ilen); - xfree(outbuf); - xfree(inbuf); -} - -void -rsa_private_decrypt(BIGNUM *out, BIGNUM *in, RSA *key) -{ - char *inbuf, *outbuf; - int len, ilen, olen; - - olen = BN_num_bytes(key->n); - outbuf = xmalloc(olen); - - ilen = BN_num_bytes(in); - inbuf = xmalloc(ilen); - BN_bn2bin(in, inbuf); - - if ((len = RSA_private_decrypt(ilen, inbuf, outbuf, key, - RSA_PKCS1_PADDING)) <= 0) - if (BN_num_bits(key->n) > 1024 && RSA_libversion() == RSALIB_RSAREF) - fatal("rsa_private_decrypt() failed: RSAREF cannot handle keys larger than 1024 bits."); - else - fatal("rsa_private_decrypt() failed."); - - BN_bin2bn(outbuf, len, out); - - memset(outbuf, 0, olen); - memset(inbuf, 0, ilen); - xfree(outbuf); - xfree(inbuf); -} - -/* Set whether to output verbose messages during key generation. */ - -void -rsa_set_verbose(int verbose) -{ - rsa_verbose = verbose; -} |