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gpg: Support EAX if for latest Libgcrypt.

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* g10/cipher-aead.c (MY_GCRY_CIPHER_MODE_EAX): New.
(write_header): Use it.
* g10/decrypt-data.c (MY_GCRY_CIPHER_MODE_EAX): New.
(decrypt_data): Use it.
* g10/misc.c (openpgp_aead_test_algo): Allow EAX.
--

This allows the use of EAX when the latest Libgcrypt master is used.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2018-01-21 16:42:29 +01:00
parent 3f4ca85cb0
commit 7356d6ec50
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
3 changed files with 16 additions and 4 deletions
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10
g10/cipher-aead.c
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@ -33,6 +33,11 @@
#include "options.h"
#include "main.h"
/* FIXME: Libgcrypt 1.9 will support EAX. Until we kame this a
* requirement we hardwire the enum used for EAX. */
#define MY_GCRY_CIPHER_MODE_EAX 14
/* The size of the buffer we allocate to encrypt the data. This must
* be a multiple of the OCB blocksize (16 byte). */
#define AEAD_ENC_BUFFER_SIZE (64*1024)
@ -151,6 +156,11 @@ write_header (cipher_filter_context_t *cfx, iobuf_t a)
startivlen = 15;
break;
case AEAD_ALGO_EAX:
ciphermode = MY_GCRY_CIPHER_MODE_EAX;
startivlen = 16;
break;
default:
log_error ("unsupported AEAD algo %d\n", cfx->dek->use_aead);
err = gpg_error (GPG_ERR_NOT_IMPLEMENTED);