X-Git-Url: https://git.cryptolib.org/?p=avr-crypto-lib.git;a=blobdiff_plain;f=gcm%2Fgcm128.h;fp=gcm%2Fgcm128.h;h=755b75ac76f843bda3a027c8ee1a9d2f26487328;hp=0000000000000000000000000000000000000000;hb=e542ff92d053ecf40b42364a44bc887431cecae2;hpb=deca11a7e7be5605c387aa2cd577e22925854ff8
diff --git a/gcm/gcm128.h b/gcm/gcm128.h
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+++ b/gcm/gcm128.h
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+/* gcm128.h */
+/*
+ This file is part of the AVR-Crypto-Lib.
+ Copyright (C) 2015 Daniel Otte (daniel.otte@rub.de)
+
+ 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 3 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, see .
+*/
+
+#ifndef GCM_GCM128_H_
+#define GCM_GCM128_H_
+
+
+/* gcm128.c */
+/*
+ This file is part of the AVR-Crypto-Lib.
+ Copyright (C) 2006-2015 Daniel Otte (daniel.otte@rub.de)
+
+ 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 3 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, see .
+*/
+
+#include
+#include
+#include
+#include
+#include
+#include
+
+#define GCM128_BLOCK_BYTES 16
+#define GCM128_BLOCK_BITS (GCM128_BLOCK_BYTES * 8)
+
+#define GCM128_COUNT_BYTES 4
+#define GCM128_COUNT_BITS (GCM128_COUNT_BYTES * 8)
+
+
+
+typedef struct {
+ uint8_t tag[GCM128_BLOCK_BYTES];
+ uint8_t key[GCM128_BLOCK_BYTES];
+} ghash128_ctx_t;
+
+typedef struct {
+ ghash128_ctx_t ghash_ctx;
+ bcgen_ctx_t cipher_ctx;
+ uint8_t ctr[GCM128_BLOCK_BYTES];
+ uint8_t j0[GCM128_COUNT_BYTES];
+ uint32_t length_a;
+ uint32_t length_c;
+} gcm128_ctx_t;
+
+int8_t gcm128_init(
+ gcm128_ctx_t *ctx,
+ const bcdesc_t *cipher,
+ const void *key,
+ uint16_t key_length_b,
+ const void *iv,
+ uint16_t iv_length_b);
+
+void gcm128_add_ad_block(
+ gcm128_ctx_t *ctx,
+ const void *block );
+
+void gcm128_add_ad_final_block(
+ gcm128_ctx_t *ctx,
+ const void *block,
+ uint16_t length_b );
+
+void gcm128_encrypt_block(
+ gcm128_ctx_t *ctx,
+ void *dest,
+ const void *src);
+
+void gcm128_encrypt_final_block(
+ gcm128_ctx_t *ctx,
+ void *dest,
+ const void *src,
+ uint16_t length_b);
+
+void gcm128_decrypt_block(
+ gcm128_ctx_t *ctx,
+ void *dest,
+ const void *src);
+
+void gcm128_decrypt_final_block(
+ gcm128_ctx_t *ctx,
+ void *dest,
+ const void *src,
+ uint16_t length_b);
+
+void gcm128_finalize(
+ gcm128_ctx_t *ctx,
+ void *tag,
+ uint16_t tag_length_b);
+
+#endif /* GCM_GCM128_H_ */