Lucas Gabriel Vuotto
2b3e390bbf
Upcoming changes will push lc_*_ctx into the params struct for higher order constructions like HMAC or HKDF.
108 lines
2.7 KiB
C
108 lines
2.7 KiB
C
/*
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* Copyright (c) 2024 Lucas Gabriel Vuotto <lucas@lgv5.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <stdlib.h>
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#include "lilcrypto.h"
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#include "cipher.h"
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int
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lc_cipher_encrypt_init(struct lc_cipher_ctx *ctx, void *initparams)
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{
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return ctx->impl->encrypt_init(ctx->arg, initparams);
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}
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int
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lc_cipher_encrypt_update(struct lc_cipher_ctx *ctx, uint8_t *out,
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size_t *outlen, const uint8_t *in, size_t inlen)
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{
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return ctx->impl->encrypt_update(ctx->arg, out, outlen, in, inlen);
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}
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int
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lc_cipher_encrypt_final(struct lc_cipher_ctx *ctx, uint8_t *out,
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size_t *outlen)
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{
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return ctx->impl->encrypt_final(ctx->arg, out, outlen);
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}
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int
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lc_cipher_encrypt(const struct lc_cipher_impl *impl, uint8_t *out,
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size_t *outlen, void *initparams, const uint8_t *in, size_t inlen)
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{
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return impl->encrypt(out, outlen, initparams, in, inlen);
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}
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int
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lc_cipher_decrypt_init(struct lc_cipher_ctx *ctx, void *initparams)
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{
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return ctx->impl->decrypt_init(ctx->arg, initparams);
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}
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int
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lc_cipher_decrypt_update(struct lc_cipher_ctx *ctx, uint8_t *out,
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size_t *outlen, const uint8_t *in, size_t inlen)
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{
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return ctx->impl->decrypt_update(ctx->arg, out, outlen, in, inlen);
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}
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int
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lc_cipher_decrypt_final(struct lc_cipher_ctx *ctx, uint8_t *out,
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size_t *outlen)
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{
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return ctx->impl->decrypt_final(ctx->arg, out, outlen);
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}
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int
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lc_cipher_decrypt(const struct lc_cipher_impl *impl, uint8_t *out,
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size_t *outlen, void *initparams, const uint8_t *in, size_t inlen)
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{
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return impl->decrypt(out, outlen, initparams, in, inlen);
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}
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struct lc_cipher_ctx *
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lc_cipher_ctx_new(const struct lc_cipher_impl *impl)
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{
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struct lc_cipher_ctx *ctx;
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ctx = malloc(sizeof(*ctx));
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if (ctx == NULL)
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return NULL;
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if (impl->ctx_new != NULL) {
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ctx->arg = impl->ctx_new();
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if (ctx->arg == NULL) {
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free(ctx);
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return NULL;
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}
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} else
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ctx->arg = NULL;
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ctx->impl = impl;
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return ctx;
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}
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void
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lc_cipher_ctx_free(struct lc_cipher_ctx *ctx)
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{
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if (ctx != NULL) {
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if (ctx->impl != NULL && ctx->impl->ctx_free != NULL)
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ctx->impl->ctx_free(ctx->arg);
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free(ctx->arg);
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}
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free(ctx);
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}
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