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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:49:46 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:49:46 +0000 |
commit | 50b37d4a27d3295a29afca2286f1a5a086142cec (patch) | |
tree | 9212f763934ee090ef72d823f559f52ce387f268 /src/modules/rlm_eap/libeap/eapcrypto.c | |
parent | Initial commit. (diff) | |
download | freeradius-upstream.tar.xz freeradius-upstream.zip |
Adding upstream version 3.2.1+dfsg.upstream/3.2.1+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/modules/rlm_eap/libeap/eapcrypto.c')
-rw-r--r-- | src/modules/rlm_eap/libeap/eapcrypto.c | 301 |
1 files changed, 301 insertions, 0 deletions
diff --git a/src/modules/rlm_eap/libeap/eapcrypto.c b/src/modules/rlm_eap/libeap/eapcrypto.c new file mode 100644 index 0000000..f57714b --- /dev/null +++ b/src/modules/rlm_eap/libeap/eapcrypto.c @@ -0,0 +1,301 @@ +/* + * eapcrypto.c Common key derivation routines for EAP/SIM. + * + * The development of the EAP/SIM support was funded by Internet Foundation + * Austria (http://www.nic.at/ipa). + * + * Version: $Id$ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA + * + * Copyright 2003 Michael Richardson <mcr@sandelman.ottawa.on.ca> + * Copyright 2003,2006 The FreeRADIUS server project + * + */ + +RCSID("$Id$") + +#include <stdio.h> +#include <stdlib.h> + +#include "eap_types.h" +#include "eap_sim.h" +#include <freeradius-devel/sha1.h> + +void eapsim_calculate_keys(struct eapsim_keys *ek) +{ + fr_sha1_ctx context; + uint8_t fk[160]; + unsigned char buf[256]; + unsigned char *p; + unsigned int blen; + + p = buf; + memcpy(p, ek->identity, ek->identitylen); p = p+ek->identitylen; + memcpy(p, ek->Kc[0], EAPSIM_KC_SIZE); p = p+EAPSIM_KC_SIZE; + memcpy(p, ek->Kc[1], EAPSIM_KC_SIZE); p = p+EAPSIM_KC_SIZE; + memcpy(p, ek->Kc[2], EAPSIM_KC_SIZE); p = p+EAPSIM_KC_SIZE; + memcpy(p, ek->nonce_mt, sizeof(ek->nonce_mt)); p=p+sizeof(ek->nonce_mt); + memcpy(p, ek->versionlist, ek->versionlistlen);p=p+ek->versionlistlen; + memcpy(p, ek->versionselect, sizeof(ek->versionselect)); p=p+sizeof(ek->versionselect); + /* *p++ = ek->versionselect[1]; */ + + blen = p - buf; + +#if defined(TEST_CASE) || defined(DUMP_EAPSIM_KEYS) + { + unsigned int i, j, k; + + j=0; k=0; + + printf("SHA1buffer was: "); + for (i = 0; i < blen; i++) { + if(j==4) { + printf("_"); + j=0; + } + if(k==20) { + printf("\n "); + k=0; + j=0; + } + j++; + k++; + + printf("%02x", buf[i]); + } + printf("\n"); + } +#endif + + + /* do the master key first */ + fr_sha1_init(&context); + fr_sha1_update(&context, buf, blen); + fr_sha1_final(ek->master_key, &context); + + /* + * now use the PRF to expand it, generated K_aut, K_encr, + * MSK and EMSK. + */ + fips186_2prf(ek->master_key, fk); + + /* split up the result */ + memcpy(ek->K_encr, fk + 0, 16); /* 128 bits for encryption */ + memcpy(ek->K_aut, fk + 16, EAPSIM_AUTH_SIZE); /*128 bits for auth */ + memcpy(ek->msk, fk + 32, 64); /* 64 bytes for Master Session Key */ + memcpy(ek->emsk, fk + 96, 64); /* 64- extended Master Session Key */ +} + + +void eapsim_dump_mk(struct eapsim_keys *ek) +{ + unsigned int i, j, k; + + printf("Input was: \n"); + printf(" identity: (len=%u)", ek->identitylen); + for (i = 0; i < ek->identitylen; i++) { + printf("%02x", ek->identity[i]); + } + + printf("\n nonce_mt: "); + for (i = 0; i < EAPSIM_NONCEMT_SIZE; i++) { + printf("%02x", ek->nonce_mt[i]); + } + + for (k = 0; k<3; k++) { + printf("\n rand%u: ", k); + for (i = 0; i < EAPSIM_RAND_SIZE; i++) { + printf("%02x", ek->rand[k][i]); + } + } + + for (k = 0; k<3; k++) { + printf("\n sres%u: ", k); + for (i = 0; i < EAPSIM_SRES_SIZE; i++) { + printf("%02x", ek->sres[k][i]); + } + } + + for (k = 0; k<3; k++) { + printf("\n Kc%u: ", k); + for (i = 0; i < EAPSIM_KC_SIZE; i++) { + printf("%02x", ek->Kc[k][i]); + } + } + + printf("\n versionlist[%d]: ",ek->versionlistlen); + for (i = 0; i < ek->versionlistlen; i++) { + printf("%02x", ek->versionlist[i]); + } + + printf("\n select %02x %02x\n", + ek->versionselect[0], + ek->versionselect[1]); + + printf("\n\nOutput\n"); + + printf("mk: "); + j=0; + for (i = 0; i < sizeof(ek->master_key); i++) { + if(j==4) { + printf("_"); + j=0; + } + j++; + + printf("%02x", ek->master_key[i]); + } + + printf("\nK_aut: "); + j=0; + for (i = 0; i < sizeof(ek->K_aut); i++) { + if(j==4) { + printf("_"); + j=0; + } + j++; + + printf("%02x", ek->K_aut[i]); + } + + printf("\nK_encr: "); + j=0; + for (i = 0; i < sizeof(ek->K_encr); i++) { + if(j==4) { + printf("_"); + j=0; + } + j++; + + printf("%02x", ek->K_encr[i]); + } + + printf("\nmsk: "); + j=0; k=0; + for (i = 0; i < sizeof(ek->msk); i++) { + if(k==20) { + printf("\n "); + k=0; + j=0; + } + if(j==4) { + printf("_"); + j=0; + } + k++; + j++; + + printf("%02x", ek->msk[i]); + } + printf("\nemsk: "); + j=0; k=0; + for (i = 0; i < sizeof(ek->emsk); i++) { + if(k==20) { + printf("\n "); + k=0; + j=0; + } + if(j==4) { + printf("_"); + j=0; + } + k++; + j++; + + printf("%02x", ek->emsk[i]); + } + printf("\n"); +} + +#ifdef TEST_CASE + +#include <assert.h> + +struct eapsim_keys inputkey1 = { + {'e', 'a', 'p', 's','i','m' }, + 6, + 0x4d, 0x6c, 0x40, 0xde, 0x48, 0x3a, 0xdd, 0x99, /* nonce_mt */ + 0x50, 0x90, 0x2c, 0x40, 0x24, 0xce, 0x76, 0x5e, + 0x89, 0xab, 0xcd, 0xef, 0x89, 0xab, 0xcd, 0xef, /* chalX */ + 0x89, 0xab, 0xcd, 0xef, 0x89, 0xab, 0xcd, 0xef, + 0x9a, 0xbc, 0xde, 0xf8, 0x9a, 0xbc, 0xde, 0xf8, + 0x9a, 0xbc, 0xde, 0xf8, 0x9a, 0xbc, 0xde, 0xf8, + 0xab, 0xcd, 0xef, 0x89, 0xab, 0xcd, 0xef, 0x89, + 0xab, 0xcd, 0xef, 0x89, 0xab, 0xcd, 0xef, 0x89, + 0x12, 0x34, 0xab, 0xcd, /* sresX */ + 0x12, 0x34, 0xab, 0xcd, + 0x23, 0x4a, 0xbc, 0xd1, + 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, /* Kc */ + 0x10, 0x21, 0x32, 0x43, 0x54, 0x65, 0x76, 0x87, + 0x30, 0x41, 0x52, 0x63, 0x74, 0x85, 0x96, 0xa7, + {0x00, 0x02, 0x00, 0x01}, + 4, + 0x00, 0x01 , +}; + +struct eapsim_keys inputkey2 = { + {'1','2','4','4','0','7','0','1','0','0','0','0','0','0','0','1','@','e','a','p','s','i','m','.','f','o','o'}, + 27, + 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, /* nonce_mt */ + 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, + 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, + 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* chalX */ + 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, + 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, + 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, + 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, + + 0xd1, 0xd2, 0xd3, 0xd4, /* SRES 1 */ + 0xe1, 0xe2, 0xe3, 0xe4, + 0xf1, 0xf2, 0xf3, 0xf4, + + 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* Kc */ + 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, + 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, + /* {0x00, 0x02, 0x00, 0x01}, */ + {0x00, 0x01}, + 2, + 0x00, 0x01 , +}; + + + +main(int argc, char *argv[]) +{ + struct eapsim_keys *ek; + + ek = &inputkey1; + + eapsim_calculate_keys(ek); + eapsim_dump_mk(ek); + + ek = &inputkey2; + + eapsim_calculate_keys(ek); + eapsim_dump_mk(ek); +} +#endif + + + + + + +/* + * Local Variables: + * c-style: bsd + * End: + */ |