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eb8b60e320
[PROTOCOL PROTOCOL.agent PROTOCOL.certkeys auth2-jpake.c authfd.c]
[authfile.c buffer.h dns.c kex.c kex.h key.c key.h monitor.c]
[monitor_wrap.c myproposal.h packet.c packet.h pathnames.h readconf.c]
[ssh-add.1 ssh-add.c ssh-agent.1 ssh-agent.c ssh-keygen.1 ssh-keygen.c]
[ssh-keyscan.1 ssh-keyscan.c ssh-keysign.8 ssh.1 ssh.c ssh2.h]
[ssh_config.5 sshconnect.c sshconnect2.c sshd.8 sshd.c sshd_config.5]
[uuencode.c uuencode.h bufec.c kexecdh.c kexecdhc.c kexecdhs.c ssh-ecdsa.c]
Implement Elliptic Curve Cryptography modes for key exchange (ECDH) and
host/user keys (ECDSA) as specified by RFC5656. ECDH and ECDSA offer
better performance than plain DH and DSA at the same equivalent symmetric
key length, as well as much shorter keys.
Only the mandatory sections of RFC5656 are implemented, specifically the
three REQUIRED curves nistp256, nistp384 and nistp521 and only ECDH and
ECDSA. Point compression (optional in RFC5656 is NOT implemented).
Certificate host and user keys using the new ECDSA key types are supported.
Note that this code has not been tested for interoperability and may be
subject to change.
feedback and ok markus@
97 lines
3.2 KiB
C
97 lines
3.2 KiB
C
/* $OpenBSD: buffer.h,v 1.21 2010/08/31 11:54:45 djm Exp $ */
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/*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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* All rights reserved
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* Code for manipulating FIFO buffers.
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*
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* As far as I am concerned, the code I have written for this software
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* can be used freely for any purpose. Any derived versions of this
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* software must be clearly marked as such, and if the derived work is
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* incompatible with the protocol description in the RFC file, it must be
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* called by a name other than "ssh" or "Secure Shell".
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*/
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#ifndef BUFFER_H
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#define BUFFER_H
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typedef struct {
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u_char *buf; /* Buffer for data. */
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u_int alloc; /* Number of bytes allocated for data. */
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u_int offset; /* Offset of first byte containing data. */
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u_int end; /* Offset of last byte containing data. */
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} Buffer;
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void buffer_init(Buffer *);
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void buffer_clear(Buffer *);
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void buffer_free(Buffer *);
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u_int buffer_len(const Buffer *);
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void *buffer_ptr(const Buffer *);
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void buffer_append(Buffer *, const void *, u_int);
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void *buffer_append_space(Buffer *, u_int);
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int buffer_check_alloc(Buffer *, u_int);
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void buffer_get(Buffer *, void *, u_int);
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void buffer_consume(Buffer *, u_int);
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void buffer_consume_end(Buffer *, u_int);
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void buffer_dump(const Buffer *);
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int buffer_get_ret(Buffer *, void *, u_int);
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int buffer_consume_ret(Buffer *, u_int);
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int buffer_consume_end_ret(Buffer *, u_int);
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#include <openssl/bn.h>
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void buffer_put_bignum(Buffer *, const BIGNUM *);
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void buffer_put_bignum2(Buffer *, const BIGNUM *);
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void buffer_get_bignum(Buffer *, BIGNUM *);
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void buffer_get_bignum2(Buffer *, BIGNUM *);
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u_short buffer_get_short(Buffer *);
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void buffer_put_short(Buffer *, u_short);
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u_int buffer_get_int(Buffer *);
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void buffer_put_int(Buffer *, u_int);
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u_int64_t buffer_get_int64(Buffer *);
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void buffer_put_int64(Buffer *, u_int64_t);
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int buffer_get_char(Buffer *);
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void buffer_put_char(Buffer *, int);
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void *buffer_get_string(Buffer *, u_int *);
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void *buffer_get_string_ptr(Buffer *, u_int *);
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void buffer_put_string(Buffer *, const void *, u_int);
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char *buffer_get_cstring(Buffer *, u_int *);
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void buffer_put_cstring(Buffer *, const char *);
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#define buffer_skip_string(b) \
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do { u_int l = buffer_get_int(b); buffer_consume(b, l); } while (0)
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int buffer_put_bignum_ret(Buffer *, const BIGNUM *);
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int buffer_get_bignum_ret(Buffer *, BIGNUM *);
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int buffer_put_bignum2_ret(Buffer *, const BIGNUM *);
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int buffer_get_bignum2_ret(Buffer *, BIGNUM *);
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int buffer_get_short_ret(u_short *, Buffer *);
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int buffer_get_int_ret(u_int *, Buffer *);
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int buffer_get_int64_ret(u_int64_t *, Buffer *);
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void *buffer_get_string_ret(Buffer *, u_int *);
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char *buffer_get_cstring_ret(Buffer *, u_int *);
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void *buffer_get_string_ptr_ret(Buffer *, u_int *);
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int buffer_get_char_ret(char *, Buffer *);
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#include <openssl/ec.h>
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int buffer_put_ecpoint_ret(Buffer *, const EC_GROUP *, const EC_POINT *);
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void buffer_put_ecpoint(Buffer *, const EC_GROUP *, const EC_POINT *);
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int buffer_get_ecpoint_ret(Buffer *, const EC_GROUP *, EC_POINT *);
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void buffer_get_ecpoint(Buffer *, const EC_GROUP *, EC_POINT *);
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#endif /* BUFFER_H */
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