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62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
/*
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This file is part of Pretty Curved Privacy (pcp1).
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Copyright (C) 2013 T.Linden.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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You can contact me by mail: <tlinden AT cpan DOT org>.
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*/
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/*
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ED25519 signatures. Currently unbuffered
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*/
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#ifndef _HAVE_PCP_ED_H
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#define _HAVE_PCP_ED_H
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#include <sodium.h>
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#include <string.h>
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#include <stdio.h>
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#include <time.h>
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#include "defines.h"
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#include "platform.h"
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#include "mem.h"
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#include "key.h"
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#include "keyhash.h"
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#include "util.h"
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/* sign a message of messagesize using s->edsecret, if it works
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return message+signature (size: messagesize + crypto_sign_BYTES),
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returns NULL otherwise */
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unsigned char *pcp_ed_sign(unsigned char *message, size_t messagesize, pcp_key_t *s);
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/* verify a signature of siglen size using p->edpub, if the signature verifies
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return the raw message with the signature removed (size: siglen - crypto_sign_BYTES),
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returns NULL otherwise */
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unsigned char * pcp_ed_verify(unsigned char *signature, size_t siglen, pcp_pubkey_t *p);
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/* same as pcp_ed_sign() but work on i/o directly, we're making a hash
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of the input 32k-wise, copy in=>out, sign the hash and append the
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sig only to the output */
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size_t pcp_ed_sign_buffered(FILE *in, FILE *out, pcp_key_t *s, int z85);
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pcp_pubkey_t *pcp_ed_verify_buffered(FILE *in, pcp_pubkey_t *p);
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size_t pcp_ed_detachsign_buffered(FILE *in, FILE *out, pcp_key_t *s);
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pcp_pubkey_t *pcp_ed_detachverify_buffered(FILE *in, FILE *sigfd, pcp_pubkey_t *p);
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#endif /* _HAVE_PCP_ED_H */
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