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Diffstat (limited to 'crypto/cipher-nettle.c')
-rw-r--r--crypto/cipher-nettle.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/crypto/cipher-nettle.c b/crypto/cipher-nettle.c
index 72d106922d..cd094cd6a5 100644
--- a/crypto/cipher-nettle.c
+++ b/crypto/cipher-nettle.c
@@ -28,6 +28,7 @@
#include <nettle/cast128.h>
#include <nettle/serpent.h>
#include <nettle/twofish.h>
+#include <nettle/ctr.h>
typedef void (*QCryptoCipherNettleFuncWrapper)(const void *ctx,
size_t length,
@@ -186,7 +187,7 @@ struct QCryptoCipherNettle {
QCryptoCipherNettleFuncNative alg_decrypt_native;
QCryptoCipherNettleFuncWrapper alg_encrypt_wrapper;
QCryptoCipherNettleFuncWrapper alg_decrypt_wrapper;
-
+ /* Initialization vector or Counter */
uint8_t *iv;
size_t blocksize;
};
@@ -236,6 +237,7 @@ QCryptoCipher *qcrypto_cipher_new(QCryptoCipherAlgorithm alg,
case QCRYPTO_CIPHER_MODE_ECB:
case QCRYPTO_CIPHER_MODE_CBC:
case QCRYPTO_CIPHER_MODE_XTS:
+ case QCRYPTO_CIPHER_MODE_CTR:
break;
default:
error_setg(errp, "Unsupported cipher mode %s",
@@ -441,6 +443,12 @@ int qcrypto_cipher_encrypt(QCryptoCipher *cipher,
ctx->iv, len, out, in);
break;
+ case QCRYPTO_CIPHER_MODE_CTR:
+ ctr_crypt(ctx->ctx, ctx->alg_encrypt_native,
+ ctx->blocksize, ctx->iv,
+ len, out, in);
+ break;
+
default:
error_setg(errp, "Unsupported cipher mode %s",
QCryptoCipherMode_lookup[cipher->mode]);
@@ -480,6 +488,11 @@ int qcrypto_cipher_decrypt(QCryptoCipher *cipher,
ctx->alg_encrypt_wrapper, ctx->alg_decrypt_wrapper,
ctx->iv, len, out, in);
break;
+ case QCRYPTO_CIPHER_MODE_CTR:
+ ctr_crypt(ctx->ctx, ctx->alg_encrypt_native,
+ ctx->blocksize, ctx->iv,
+ len, out, in);
+ break;
default:
error_setg(errp, "Unsupported cipher mode %s",