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[READ-ONLY] Mirror of https://github.com/VibeDevelopers/atheme. Modified fork of atheme IRC Services www.vibetalk.net
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1.4 kB · 61 lines
C
at master
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162/* * SPDX-License-Identifier: ISC * SPDX-URL: https://spdx.org/licenses/ISC.html * * Copyright (C) 2013 William Pitcock <nenolod@dereferenced.org> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. */
#include <atheme.h>#include <atheme/libathemecore.h>
#include <openssl/ec.h>#include <openssl/ecdsa.h>#include <openssl/evp.h>
intmain(int argc, const char **argv){ if (! libathemecore_early_init()) return EXIT_FAILURE;
EC_KEY *pub; char workbuf[BUFSIZE]; const unsigned char *workbuf_p; size_t len, i;
if (argv[1] == NULL) { fprintf(stderr, "usage: %s [base64key]\n", argv[0]); return EXIT_FAILURE; }
memset(workbuf, '\0', sizeof workbuf);
pub = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1); EC_KEY_set_conv_form(pub, POINT_CONVERSION_COMPRESSED);
len = base64_decode(argv[1], workbuf, sizeof workbuf); workbuf_p = (unsigned char *) workbuf;
if (len == (size_t) -1) { fprintf(stderr, "Failed to decode key!\n"); return EXIT_FAILURE; }
o2i_ECPublicKey(&pub, &workbuf_p, len); if (!EC_KEY_check_key(pub)) { fprintf(stderr, "Key data provided on commandline is inconsistent.\n"); return EXIT_FAILURE; }
printf("Public key (reassembled):\n"); EC_KEY_print_fp(stdout, pub, 4);
return EXIT_SUCCESS;}