* [PATCH 1/3] x86/sev: Use new AES-GCM library
2026-07-22 2:53 [PATCH 0/3] Remove old AES-GCM library Eric Biggers
@ 2026-07-22 2:53 ` Eric Biggers
2026-07-22 2:53 ` [PATCH 2/3] x86/sev: Remove obsolete virtual address check Eric Biggers
2026-07-22 2:53 ` [PATCH 3/3] lib/crypto: aesgcm: Remove old AES-GCM library Eric Biggers
2 siblings, 0 replies; 4+ messages in thread
From: Eric Biggers @ 2026-07-22 2:53 UTC (permalink / raw)
To: linux-crypto
Cc: linux-kernel, Ard Biesheuvel, Jason A . Donenfeld, Herbert Xu,
x86, Borislav Petkov, Carlos López, Alexey Kardashevskiy,
Eric Biggers
The old AES-GCM library code is being replaced as part of an overhaul
that is adding support for all the common AES encryption modes with
consistent conventions. The SEV code is the only user of the old
AES-GCM library. Update it to use the new API instead.
Besides adjustments to the key struct name, function names, return
value, and parameter order, the only notable changes are:
- Replace the direct accesses to the auth tag length field (which should
be considered private until someone truly needs it) with the
AUTHTAG_LEN constant which is already defined in <asm/sev.h>.
- Replace kfree() with kfree_sensitive() on lines being changed anyway.
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
---
arch/x86/Kconfig | 2 +-
arch/x86/coco/sev/core.c | 44 ++++++++++++-------------
arch/x86/include/asm/sev.h | 2 +-
drivers/virt/coco/sev-guest/sev-guest.c | 7 ++--
4 files changed, 26 insertions(+), 29 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index bdad90f210e4b..0b89641cac160 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1495,7 +1495,7 @@ config AMD_MEM_ENCRYPT
select ARCH_HAS_CC_PLATFORM
select X86_MEM_ENCRYPT
select UNACCEPTED_MEMORY
- select CRYPTO_LIB_AESGCM
+ select CRYPTO_LIB_AES_GCM
help
Say yes to enable support for the encryption of system memory.
This requires an AMD processor that supports Secure Memory
diff --git a/arch/x86/coco/sev/core.c b/arch/x86/coco/sev/core.c
index ecd77d3217f3c..54b122f6ef96a 100644
--- a/arch/x86/coco/sev/core.c
+++ b/arch/x86/coco/sev/core.c
@@ -25,7 +25,7 @@
#include <linux/psp-sev.h>
#include <linux/dmi.h>
#include <uapi/linux/sev-guest.h>
-#include <crypto/gcm.h>
+#include <crypto/aes-gcm.h>
#include <asm/init.h>
#include <asm/cpu_entry_area.h>
@@ -1535,21 +1535,21 @@ static u8 *get_vmpck(int id, struct snp_secrets_page *secrets, u32 **seqno)
return key;
}
-static struct aesgcm_ctx *snp_init_crypto(u8 *key, size_t keylen)
+static struct aes_gcm_key *snp_init_crypto(const u8 *key, size_t keylen)
{
- struct aesgcm_ctx *ctx;
+ struct aes_gcm_key *gcm_key;
- ctx = kzalloc_obj(*ctx);
- if (!ctx)
+ gcm_key = kzalloc_obj(*gcm_key);
+ if (!gcm_key)
return NULL;
- if (aesgcm_expandkey(ctx, key, keylen, AUTHTAG_LEN)) {
- pr_err("Crypto context initialization failed\n");
- kfree(ctx);
+ if (aes_gcm_preparekey(gcm_key, key, keylen, AUTHTAG_LEN)) {
+ pr_err("AES-GCM key preparation failed\n");
+ kfree_sensitive(gcm_key);
return NULL;
}
- return ctx;
+ return gcm_key;
}
int snp_msg_init(struct snp_msg_desc *mdesc, int vmpck_id)
@@ -1572,8 +1572,8 @@ int snp_msg_init(struct snp_msg_desc *mdesc, int vmpck_id)
mdesc->vmpck_id = vmpck_id;
- mdesc->ctx = snp_init_crypto(mdesc->vmpck, VMPCK_KEY_LEN);
- if (!mdesc->ctx)
+ mdesc->gcm_key = snp_init_crypto(mdesc->vmpck, VMPCK_KEY_LEN);
+ if (!mdesc->gcm_key)
return -ENOMEM;
return 0;
@@ -1624,7 +1624,7 @@ void snp_msg_free(struct snp_msg_desc *mdesc)
if (!mdesc)
return;
- kfree(mdesc->ctx);
+ kfree_sensitive(mdesc->gcm_key);
free_shared_pages(mdesc->response, sizeof(struct snp_guest_msg));
free_shared_pages(mdesc->request, sizeof(struct snp_guest_msg));
iounmap((__force void __iomem *)mdesc->secrets);
@@ -1709,7 +1709,7 @@ static int verify_and_dec_payload(struct snp_msg_desc *mdesc, struct snp_guest_r
struct snp_guest_msg *req_msg = &mdesc->secret_request;
struct snp_guest_msg_hdr *req_msg_hdr = &req_msg->hdr;
struct snp_guest_msg_hdr *resp_msg_hdr = &resp_msg->hdr;
- struct aesgcm_ctx *ctx = mdesc->ctx;
+ struct aes_gcm_key *gcm_key = mdesc->gcm_key;
u8 iv[GCM_AES_IV_SIZE] = {};
pr_debug("response [seqno %lld type %d version %d sz %d]\n",
@@ -1732,23 +1732,21 @@ static int verify_and_dec_payload(struct snp_msg_desc *mdesc, struct snp_guest_r
* If the message size is greater than our buffer length then return
* an error.
*/
- if (unlikely((resp_msg_hdr->msg_sz + ctx->authsize) > req->resp_sz))
+ if (unlikely(resp_msg_hdr->msg_sz + AUTHTAG_LEN > req->resp_sz))
return -EBADMSG;
/* Decrypt the payload */
memcpy(iv, &resp_msg_hdr->msg_seqno, min(sizeof(iv), sizeof(resp_msg_hdr->msg_seqno)));
- if (!aesgcm_decrypt(ctx, req->resp_buf, resp_msg->payload, resp_msg_hdr->msg_sz,
- &resp_msg_hdr->algo, AAD_LEN, iv, resp_msg_hdr->authtag))
- return -EBADMSG;
-
- return 0;
+ return aes_gcm_decrypt(req->resp_buf, resp_msg->payload,
+ resp_msg_hdr->msg_sz, resp_msg_hdr->authtag,
+ &resp_msg_hdr->algo, AAD_LEN, iv, gcm_key);
}
static int enc_payload(struct snp_msg_desc *mdesc, u64 seqno, struct snp_guest_req *req)
{
struct snp_guest_msg *msg = &mdesc->secret_request;
struct snp_guest_msg_hdr *hdr = &msg->hdr;
- struct aesgcm_ctx *ctx = mdesc->ctx;
+ struct aes_gcm_key *gcm_key = mdesc->gcm_key;
u8 iv[GCM_AES_IV_SIZE] = {};
memset(msg, 0, sizeof(*msg));
@@ -1769,12 +1767,12 @@ static int enc_payload(struct snp_msg_desc *mdesc, u64 seqno, struct snp_guest_r
pr_debug("request [seqno %lld type %d version %d sz %d]\n",
hdr->msg_seqno, hdr->msg_type, hdr->msg_version, hdr->msg_sz);
- if (WARN_ON((req->req_sz + ctx->authsize) > sizeof(msg->payload)))
+ if (WARN_ON(req->req_sz + AUTHTAG_LEN > sizeof(msg->payload)))
return -EBADMSG;
memcpy(iv, &hdr->msg_seqno, min(sizeof(iv), sizeof(hdr->msg_seqno)));
- aesgcm_encrypt(ctx, msg->payload, req->req_buf, req->req_sz, &hdr->algo,
- AAD_LEN, iv, hdr->authtag);
+ aes_gcm_encrypt(msg->payload, req->req_buf, req->req_sz, hdr->authtag,
+ &hdr->algo, AAD_LEN, iv, gcm_key);
return 0;
}
diff --git a/arch/x86/include/asm/sev.h b/arch/x86/include/asm/sev.h
index 594cfa19cbd4b..9e7a077c445dc 100644
--- a/arch/x86/include/asm/sev.h
+++ b/arch/x86/include/asm/sev.h
@@ -314,7 +314,7 @@ struct snp_msg_desc {
struct snp_secrets_page *secrets;
- struct aesgcm_ctx *ctx;
+ struct aes_gcm_key *gcm_key;
u32 *os_area_msg_seqno;
u8 *vmpck;
diff --git a/drivers/virt/coco/sev-guest/sev-guest.c b/drivers/virt/coco/sev-guest/sev-guest.c
index d186ae55cf63b..935537a41469b 100644
--- a/drivers/virt/coco/sev-guest/sev-guest.c
+++ b/drivers/virt/coco/sev-guest/sev-guest.c
@@ -17,7 +17,6 @@
#include <linux/set_memory.h>
#include <linux/fs.h>
#include <linux/tsm.h>
-#include <crypto/gcm.h>
#include <linux/psp-sev.h>
#include <linux/sockptr.h>
#include <linux/cleanup.h>
@@ -87,7 +86,7 @@ static int get_report(struct snp_guest_dev *snp_dev, struct snp_guest_request_io
* response payload. Make sure that it has enough space to cover the
* authtag.
*/
- resp_len = sizeof(report_resp->data) + mdesc->ctx->authsize;
+ resp_len = sizeof(report_resp->data) + AUTHTAG_LEN;
report_resp = kzalloc(resp_len, GFP_KERNEL_ACCOUNT);
if (!report_resp)
return -ENOMEM;
@@ -130,7 +129,7 @@ static int get_derived_key(struct snp_guest_dev *snp_dev, struct snp_guest_reque
* response payload. Make sure that it has enough space to cover the
* authtag.
*/
- resp_len = sizeof(derived_key_resp->data) + mdesc->ctx->authsize;
+ resp_len = sizeof(derived_key_resp->data) + AUTHTAG_LEN;
derived_key_resp = kzalloc(resp_len, GFP_KERNEL_ACCOUNT);
if (!derived_key_resp)
return -ENOMEM;
@@ -230,7 +229,7 @@ static int get_ext_report(struct snp_guest_dev *snp_dev, struct snp_guest_reques
* response payload. Make sure that it has enough space to cover the
* authtag.
*/
- resp_len = sizeof(report_resp->data) + mdesc->ctx->authsize;
+ resp_len = sizeof(report_resp->data) + AUTHTAG_LEN;
report_resp = kzalloc(resp_len, GFP_KERNEL_ACCOUNT);
if (!report_resp) {
ret = -ENOMEM;
--
2.55.0
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH 3/3] lib/crypto: aesgcm: Remove old AES-GCM library
2026-07-22 2:53 [PATCH 0/3] Remove old AES-GCM library Eric Biggers
2026-07-22 2:53 ` [PATCH 1/3] x86/sev: Use new " Eric Biggers
2026-07-22 2:53 ` [PATCH 2/3] x86/sev: Remove obsolete virtual address check Eric Biggers
@ 2026-07-22 2:53 ` Eric Biggers
2 siblings, 0 replies; 4+ messages in thread
From: Eric Biggers @ 2026-07-22 2:53 UTC (permalink / raw)
To: linux-crypto
Cc: linux-kernel, Ard Biesheuvel, Jason A . Donenfeld, Herbert Xu,
x86, Borislav Petkov, Carlos López, Alexey Kardashevskiy,
Eric Biggers
The old AES-GCM library code is no longer used, so remove it.
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
---
include/crypto/gcm.h | 21 --
lib/crypto/Kconfig | 6 -
lib/crypto/Makefile | 3 -
lib/crypto/aesgcm.c | 721 -------------------------------------------
4 files changed, 751 deletions(-)
delete mode 100644 lib/crypto/aesgcm.c
diff --git a/include/crypto/gcm.h b/include/crypto/gcm.h
index 7fd7892ad818e..154038ca73430 100644
--- a/include/crypto/gcm.h
+++ b/include/crypto/gcm.h
@@ -3,9 +3,6 @@
#include <linux/errno.h>
-#include <crypto/aes.h>
-#include <crypto/gf128hash.h>
-
#define GCM_AES_IV_SIZE 12
#define GCM_RFC4106_IV_SIZE 8
#define GCM_RFC4543_IV_SIZE 8
@@ -64,22 +61,4 @@ static inline int crypto_ipsec_check_assoclen(unsigned int assoclen)
return 0;
}
-struct aesgcm_ctx {
- struct ghash_key ghash_key;
- struct aes_enckey aes_key;
- unsigned int authsize;
-};
-
-int aesgcm_expandkey(struct aesgcm_ctx *ctx, const u8 *key,
- unsigned int keysize, unsigned int authsize);
-
-void aesgcm_encrypt(const struct aesgcm_ctx *ctx, u8 *dst, const u8 *src,
- int crypt_len, const u8 *assoc, int assoc_len,
- const u8 iv[GCM_AES_IV_SIZE], u8 *authtag);
-
-bool __must_check aesgcm_decrypt(const struct aesgcm_ctx *ctx, u8 *dst,
- const u8 *src, int crypt_len, const u8 *assoc,
- int assoc_len, const u8 iv[GCM_AES_IV_SIZE],
- const u8 *authtag);
-
#endif
diff --git a/lib/crypto/Kconfig b/lib/crypto/Kconfig
index 65a478f69715d..32c26b19127b4 100644
--- a/lib/crypto/Kconfig
+++ b/lib/crypto/Kconfig
@@ -75,12 +75,6 @@ config CRYPTO_LIB_AES_XTS
help
The AES-XTS library functions.
-config CRYPTO_LIB_AESGCM
- tristate
- select CRYPTO_LIB_AES
- select CRYPTO_LIB_GF128HASH
- select CRYPTO_LIB_UTILS
-
config CRYPTO_LIB_ARC4
tristate
diff --git a/lib/crypto/Makefile b/lib/crypto/Makefile
index f1e9bf89785ff..ca068df1f71f2 100644
--- a/lib/crypto/Makefile
+++ b/lib/crypto/Makefile
@@ -63,9 +63,6 @@ clean-files += powerpc/aesp8-ppc.S
obj-$(CONFIG_CRYPTO_LIB_AESCFB) += libaescfb.o
libaescfb-y := aescfb.o
-obj-$(CONFIG_CRYPTO_LIB_AESGCM) += libaesgcm.o
-libaesgcm-y := aesgcm.o
-
obj-$(CONFIG_CRYPTO_LIB_ARC4) += libarc4.o
libarc4-y := arc4.o
diff --git a/lib/crypto/aesgcm.c b/lib/crypto/aesgcm.c
deleted file mode 100644
index 1da31e1f747d4..0000000000000
--- a/lib/crypto/aesgcm.c
+++ /dev/null
@@ -1,721 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Minimal library implementation of GCM
- *
- * Copyright 2022 Google LLC
- */
-
-#include <crypto/gcm.h>
-#include <crypto/utils.h>
-#include <linux/export.h>
-#include <linux/module.h>
-
-/**
- * aesgcm_expandkey - Expands the AES and GHASH keys for the AES-GCM key
- * schedule
- *
- * @ctx: The data structure that will hold the AES-GCM key schedule
- * @key: The AES encryption input key
- * @keysize: The length in bytes of the input key
- * @authsize: The size in bytes of the GCM authentication tag
- *
- * Returns: 0 on success, or -EINVAL if @keysize or @authsize contain values
- * that are not permitted by the GCM specification.
- */
-int aesgcm_expandkey(struct aesgcm_ctx *ctx, const u8 *key,
- unsigned int keysize, unsigned int authsize)
-{
- u8 h[AES_BLOCK_SIZE] = {};
- int ret;
-
- ret = crypto_gcm_check_authsize(authsize) ?:
- aes_prepareenckey(&ctx->aes_key, key, keysize);
- if (ret)
- return ret;
-
- ctx->authsize = authsize;
- aes_encrypt(&ctx->aes_key, h, h);
- ghash_preparekey(&ctx->ghash_key, h);
- memzero_explicit(h, sizeof(h));
- return 0;
-}
-EXPORT_SYMBOL(aesgcm_expandkey);
-
-/**
- * aesgcm_mac - Generates the authentication tag using AES-GCM algorithm.
- * @ctx: The data structure that will hold the AES-GCM key schedule
- * @src: The input source data.
- * @src_len: Length of the source data.
- * @assoc: Points to the associated data.
- * @assoc_len: Length of the associated data values.
- * @ctr: Points to the counter value.
- * @authtag: The output buffer for the authentication tag.
- *
- * It takes in the AES-GCM context, source data, associated data, counter value,
- * and an output buffer for the authentication tag.
- */
-static void aesgcm_mac(const struct aesgcm_ctx *ctx, const u8 *src, int src_len,
- const u8 *assoc, int assoc_len, __be32 *ctr, u8 *authtag)
-{
- static const u8 zeroes[GHASH_BLOCK_SIZE];
- __be64 tail[2] = {
- cpu_to_be64((u64)assoc_len * 8),
- cpu_to_be64((u64)src_len * 8),
- };
- struct ghash_ctx ghash;
- u8 ghash_out[AES_BLOCK_SIZE];
- u8 enc_ctr[AES_BLOCK_SIZE];
-
- ghash_init(&ghash, &ctx->ghash_key);
-
- ghash_update(&ghash, assoc, assoc_len);
- ghash_update(&ghash, zeroes, -assoc_len & (GHASH_BLOCK_SIZE - 1));
-
- ghash_update(&ghash, src, src_len);
- ghash_update(&ghash, zeroes, -src_len & (GHASH_BLOCK_SIZE - 1));
-
- ghash_update(&ghash, (const u8 *)&tail, sizeof(tail));
-
- ghash_final(&ghash, ghash_out);
-
- ctr[3] = cpu_to_be32(1);
- aes_encrypt(&ctx->aes_key, enc_ctr, (const u8 *)ctr);
- crypto_xor_cpy(authtag, ghash_out, enc_ctr, ctx->authsize);
-
- memzero_explicit(ghash_out, sizeof(ghash_out));
- memzero_explicit(enc_ctr, sizeof(enc_ctr));
-}
-
-static void aesgcm_crypt(const struct aesgcm_ctx *ctx, u8 *dst, const u8 *src,
- int len, __be32 *ctr)
-{
- u8 buf[AES_BLOCK_SIZE];
- unsigned int n = 2;
-
- while (len > 0) {
- /*
- * The counter increment below must not result in overflow or
- * carry into the next 32-bit word, as this could result in
- * inadvertent IV reuse, which must be avoided at all cost for
- * stream ciphers such as AES-CTR. Given the range of 'int
- * len', this cannot happen, so no explicit test is necessary.
- */
- ctr[3] = cpu_to_be32(n++);
- aes_encrypt(&ctx->aes_key, buf, (const u8 *)ctr);
- crypto_xor_cpy(dst, src, buf, min(len, AES_BLOCK_SIZE));
-
- dst += AES_BLOCK_SIZE;
- src += AES_BLOCK_SIZE;
- len -= AES_BLOCK_SIZE;
- }
- memzero_explicit(buf, sizeof(buf));
-}
-
-/**
- * aesgcm_encrypt - Perform AES-GCM encryption on a block of data
- *
- * @ctx: The AES-GCM key schedule
- * @dst: Pointer to the ciphertext output buffer
- * @src: Pointer the plaintext (may equal @dst for encryption in place)
- * @crypt_len: The size in bytes of the plaintext and ciphertext.
- * @assoc: Pointer to the associated data,
- * @assoc_len: The size in bytes of the associated data
- * @iv: The initialization vector (IV) to use for this block of data
- * (must be 12 bytes in size as per the GCM spec recommendation)
- * @authtag: The address of the buffer in memory where the authentication
- * tag should be stored. The buffer is assumed to have space for
- * @ctx->authsize bytes.
- */
-void aesgcm_encrypt(const struct aesgcm_ctx *ctx, u8 *dst, const u8 *src,
- int crypt_len, const u8 *assoc, int assoc_len,
- const u8 iv[GCM_AES_IV_SIZE], u8 *authtag)
-{
- __be32 ctr[4];
-
- memcpy(ctr, iv, GCM_AES_IV_SIZE);
-
- aesgcm_crypt(ctx, dst, src, crypt_len, ctr);
- aesgcm_mac(ctx, dst, crypt_len, assoc, assoc_len, ctr, authtag);
-}
-EXPORT_SYMBOL(aesgcm_encrypt);
-
-/**
- * aesgcm_decrypt - Perform AES-GCM decryption on a block of data
- *
- * @ctx: The AES-GCM key schedule
- * @dst: Pointer to the plaintext output buffer
- * @src: Pointer the ciphertext (may equal @dst for decryption in place)
- * @crypt_len: The size in bytes of the plaintext and ciphertext.
- * @assoc: Pointer to the associated data,
- * @assoc_len: The size in bytes of the associated data
- * @iv: The initialization vector (IV) to use for this block of data
- * (must be 12 bytes in size as per the GCM spec recommendation)
- * @authtag: The address of the buffer in memory where the authentication
- * tag is stored.
- *
- * Returns: true on success, or false if the ciphertext failed authentication.
- * On failure, no plaintext will be returned.
- */
-bool __must_check aesgcm_decrypt(const struct aesgcm_ctx *ctx, u8 *dst,
- const u8 *src, int crypt_len, const u8 *assoc,
- int assoc_len, const u8 iv[GCM_AES_IV_SIZE],
- const u8 *authtag)
-{
- u8 tagbuf[AES_BLOCK_SIZE];
- __be32 ctr[4];
-
- memcpy(ctr, iv, GCM_AES_IV_SIZE);
-
- aesgcm_mac(ctx, src, crypt_len, assoc, assoc_len, ctr, tagbuf);
- if (crypto_memneq(authtag, tagbuf, ctx->authsize)) {
- memzero_explicit(tagbuf, sizeof(tagbuf));
- return false;
- }
- aesgcm_crypt(ctx, dst, src, crypt_len, ctr);
- return true;
-}
-EXPORT_SYMBOL(aesgcm_decrypt);
-
-MODULE_DESCRIPTION("Generic AES-GCM library");
-MODULE_AUTHOR("Ard Biesheuvel <ardb@kernel.org>");
-MODULE_LICENSE("GPL");
-
-#ifdef CONFIG_CRYPTO_SELFTESTS
-
-/*
- * Test code below. Vectors taken from crypto/testmgr.h
- */
-
-static const u8 __initconst ctext0[16] __nonstring =
- "\x58\xe2\xfc\xce\xfa\x7e\x30\x61"
- "\x36\x7f\x1d\x57\xa4\xe7\x45\x5a";
-
-static const u8 __initconst ptext1[16];
-
-static const u8 __initconst ctext1[32] __nonstring =
- "\x03\x88\xda\xce\x60\xb6\xa3\x92"
- "\xf3\x28\xc2\xb9\x71\xb2\xfe\x78"
- "\xab\x6e\x47\xd4\x2c\xec\x13\xbd"
- "\xf5\x3a\x67\xb2\x12\x57\xbd\xdf";
-
-static const u8 __initconst ptext2[64] __nonstring =
- "\xd9\x31\x32\x25\xf8\x84\x06\xe5"
- "\xa5\x59\x09\xc5\xaf\xf5\x26\x9a"
- "\x86\xa7\xa9\x53\x15\x34\xf7\xda"
- "\x2e\x4c\x30\x3d\x8a\x31\x8a\x72"
- "\x1c\x3c\x0c\x95\x95\x68\x09\x53"
- "\x2f\xcf\x0e\x24\x49\xa6\xb5\x25"
- "\xb1\x6a\xed\xf5\xaa\x0d\xe6\x57"
- "\xba\x63\x7b\x39\x1a\xaf\xd2\x55";
-
-static const u8 __initconst ctext2[80] __nonstring =
- "\x42\x83\x1e\xc2\x21\x77\x74\x24"
- "\x4b\x72\x21\xb7\x84\xd0\xd4\x9c"
- "\xe3\xaa\x21\x2f\x2c\x02\xa4\xe0"
- "\x35\xc1\x7e\x23\x29\xac\xa1\x2e"
- "\x21\xd5\x14\xb2\x54\x66\x93\x1c"
- "\x7d\x8f\x6a\x5a\xac\x84\xaa\x05"
- "\x1b\xa3\x0b\x39\x6a\x0a\xac\x97"
- "\x3d\x58\xe0\x91\x47\x3f\x59\x85"
- "\x4d\x5c\x2a\xf3\x27\xcd\x64\xa6"
- "\x2c\xf3\x5a\xbd\x2b\xa6\xfa\xb4";
-
-static const u8 __initconst ptext3[60] __nonstring =
- "\xd9\x31\x32\x25\xf8\x84\x06\xe5"
- "\xa5\x59\x09\xc5\xaf\xf5\x26\x9a"
- "\x86\xa7\xa9\x53\x15\x34\xf7\xda"
- "\x2e\x4c\x30\x3d\x8a\x31\x8a\x72"
- "\x1c\x3c\x0c\x95\x95\x68\x09\x53"
- "\x2f\xcf\x0e\x24\x49\xa6\xb5\x25"
- "\xb1\x6a\xed\xf5\xaa\x0d\xe6\x57"
- "\xba\x63\x7b\x39";
-
-static const u8 __initconst ctext3[76] __nonstring =
- "\x42\x83\x1e\xc2\x21\x77\x74\x24"
- "\x4b\x72\x21\xb7\x84\xd0\xd4\x9c"
- "\xe3\xaa\x21\x2f\x2c\x02\xa4\xe0"
- "\x35\xc1\x7e\x23\x29\xac\xa1\x2e"
- "\x21\xd5\x14\xb2\x54\x66\x93\x1c"
- "\x7d\x8f\x6a\x5a\xac\x84\xaa\x05"
- "\x1b\xa3\x0b\x39\x6a\x0a\xac\x97"
- "\x3d\x58\xe0\x91"
- "\x5b\xc9\x4f\xbc\x32\x21\xa5\xdb"
- "\x94\xfa\xe9\x5a\xe7\x12\x1a\x47";
-
-static const u8 __initconst ctext4[16] __nonstring =
- "\xcd\x33\xb2\x8a\xc7\x73\xf7\x4b"
- "\xa0\x0e\xd1\xf3\x12\x57\x24\x35";
-
-static const u8 __initconst ctext5[32] __nonstring =
- "\x98\xe7\x24\x7c\x07\xf0\xfe\x41"
- "\x1c\x26\x7e\x43\x84\xb0\xf6\x00"
- "\x2f\xf5\x8d\x80\x03\x39\x27\xab"
- "\x8e\xf4\xd4\x58\x75\x14\xf0\xfb";
-
-static const u8 __initconst ptext6[64] __nonstring =
- "\xd9\x31\x32\x25\xf8\x84\x06\xe5"
- "\xa5\x59\x09\xc5\xaf\xf5\x26\x9a"
- "\x86\xa7\xa9\x53\x15\x34\xf7\xda"
- "\x2e\x4c\x30\x3d\x8a\x31\x8a\x72"
- "\x1c\x3c\x0c\x95\x95\x68\x09\x53"
- "\x2f\xcf\x0e\x24\x49\xa6\xb5\x25"
- "\xb1\x6a\xed\xf5\xaa\x0d\xe6\x57"
- "\xba\x63\x7b\x39\x1a\xaf\xd2\x55";
-
-static const u8 __initconst ctext6[80] __nonstring =
- "\x39\x80\xca\x0b\x3c\x00\xe8\x41"
- "\xeb\x06\xfa\xc4\x87\x2a\x27\x57"
- "\x85\x9e\x1c\xea\xa6\xef\xd9\x84"
- "\x62\x85\x93\xb4\x0c\xa1\xe1\x9c"
- "\x7d\x77\x3d\x00\xc1\x44\xc5\x25"
- "\xac\x61\x9d\x18\xc8\x4a\x3f\x47"
- "\x18\xe2\x44\x8b\x2f\xe3\x24\xd9"
- "\xcc\xda\x27\x10\xac\xad\xe2\x56"
- "\x99\x24\xa7\xc8\x58\x73\x36\xbf"
- "\xb1\x18\x02\x4d\xb8\x67\x4a\x14";
-
-static const u8 __initconst ctext7[16] __nonstring =
- "\x53\x0f\x8a\xfb\xc7\x45\x36\xb9"
- "\xa9\x63\xb4\xf1\xc4\xcb\x73\x8b";
-
-static const u8 __initconst ctext8[32] __nonstring =
- "\xce\xa7\x40\x3d\x4d\x60\x6b\x6e"
- "\x07\x4e\xc5\xd3\xba\xf3\x9d\x18"
- "\xd0\xd1\xc8\xa7\x99\x99\x6b\xf0"
- "\x26\x5b\x98\xb5\xd4\x8a\xb9\x19";
-
-static const u8 __initconst ptext9[64] __nonstring =
- "\xd9\x31\x32\x25\xf8\x84\x06\xe5"
- "\xa5\x59\x09\xc5\xaf\xf5\x26\x9a"
- "\x86\xa7\xa9\x53\x15\x34\xf7\xda"
- "\x2e\x4c\x30\x3d\x8a\x31\x8a\x72"
- "\x1c\x3c\x0c\x95\x95\x68\x09\x53"
- "\x2f\xcf\x0e\x24\x49\xa6\xb5\x25"
- "\xb1\x6a\xed\xf5\xaa\x0d\xe6\x57"
- "\xba\x63\x7b\x39\x1a\xaf\xd2\x55";
-
-static const u8 __initconst ctext9[80] __nonstring =
- "\x52\x2d\xc1\xf0\x99\x56\x7d\x07"
- "\xf4\x7f\x37\xa3\x2a\x84\x42\x7d"
- "\x64\x3a\x8c\xdc\xbf\xe5\xc0\xc9"
- "\x75\x98\xa2\xbd\x25\x55\xd1\xaa"
- "\x8c\xb0\x8e\x48\x59\x0d\xbb\x3d"
- "\xa7\xb0\x8b\x10\x56\x82\x88\x38"
- "\xc5\xf6\x1e\x63\x93\xba\x7a\x0a"
- "\xbc\xc9\xf6\x62\x89\x80\x15\xad"
- "\xb0\x94\xda\xc5\xd9\x34\x71\xbd"
- "\xec\x1a\x50\x22\x70\xe3\xcc\x6c";
-
-static const u8 __initconst ptext10[60] __nonstring =
- "\xd9\x31\x32\x25\xf8\x84\x06\xe5"
- "\xa5\x59\x09\xc5\xaf\xf5\x26\x9a"
- "\x86\xa7\xa9\x53\x15\x34\xf7\xda"
- "\x2e\x4c\x30\x3d\x8a\x31\x8a\x72"
- "\x1c\x3c\x0c\x95\x95\x68\x09\x53"
- "\x2f\xcf\x0e\x24\x49\xa6\xb5\x25"
- "\xb1\x6a\xed\xf5\xaa\x0d\xe6\x57"
- "\xba\x63\x7b\x39";
-
-static const u8 __initconst ctext10[76] __nonstring =
- "\x52\x2d\xc1\xf0\x99\x56\x7d\x07"
- "\xf4\x7f\x37\xa3\x2a\x84\x42\x7d"
- "\x64\x3a\x8c\xdc\xbf\xe5\xc0\xc9"
- "\x75\x98\xa2\xbd\x25\x55\xd1\xaa"
- "\x8c\xb0\x8e\x48\x59\x0d\xbb\x3d"
- "\xa7\xb0\x8b\x10\x56\x82\x88\x38"
- "\xc5\xf6\x1e\x63\x93\xba\x7a\x0a"
- "\xbc\xc9\xf6\x62"
- "\x76\xfc\x6e\xce\x0f\x4e\x17\x68"
- "\xcd\xdf\x88\x53\xbb\x2d\x55\x1b";
-
-static const u8 __initconst ptext11[60] __nonstring =
- "\xd9\x31\x32\x25\xf8\x84\x06\xe5"
- "\xa5\x59\x09\xc5\xaf\xf5\x26\x9a"
- "\x86\xa7\xa9\x53\x15\x34\xf7\xda"
- "\x2e\x4c\x30\x3d\x8a\x31\x8a\x72"
- "\x1c\x3c\x0c\x95\x95\x68\x09\x53"
- "\x2f\xcf\x0e\x24\x49\xa6\xb5\x25"
- "\xb1\x6a\xed\xf5\xaa\x0d\xe6\x57"
- "\xba\x63\x7b\x39";
-
-static const u8 __initconst ctext11[76] __nonstring =
- "\x39\x80\xca\x0b\x3c\x00\xe8\x41"
- "\xeb\x06\xfa\xc4\x87\x2a\x27\x57"
- "\x85\x9e\x1c\xea\xa6\xef\xd9\x84"
- "\x62\x85\x93\xb4\x0c\xa1\xe1\x9c"
- "\x7d\x77\x3d\x00\xc1\x44\xc5\x25"
- "\xac\x61\x9d\x18\xc8\x4a\x3f\x47"
- "\x18\xe2\x44\x8b\x2f\xe3\x24\xd9"
- "\xcc\xda\x27\x10"
- "\x25\x19\x49\x8e\x80\xf1\x47\x8f"
- "\x37\xba\x55\xbd\x6d\x27\x61\x8c";
-
-static const u8 __initconst ptext12[719] __nonstring =
- "\x42\xc1\xcc\x08\x48\x6f\x41\x3f"
- "\x2f\x11\x66\x8b\x2a\x16\xf0\xe0"
- "\x58\x83\xf0\xc3\x70\x14\xc0\x5b"
- "\x3f\xec\x1d\x25\x3c\x51\xd2\x03"
- "\xcf\x59\x74\x1f\xb2\x85\xb4\x07"
- "\xc6\x6a\x63\x39\x8a\x5b\xde\xcb"
- "\xaf\x08\x44\xbd\x6f\x91\x15\xe1"
- "\xf5\x7a\x6e\x18\xbd\xdd\x61\x50"
- "\x59\xa9\x97\xab\xbb\x0e\x74\x5c"
- "\x00\xa4\x43\x54\x04\x54\x9b\x3b"
- "\x77\xec\xfd\x5c\xa6\xe8\x7b\x08"
- "\xae\xe6\x10\x3f\x32\x65\xd1\xfc"
- "\xa4\x1d\x2c\x31\xfb\x33\x7a\xb3"
- "\x35\x23\xf4\x20\x41\xd4\xad\x82"
- "\x8b\xa4\xad\x96\x1c\x20\x53\xbe"
- "\x0e\xa6\xf4\xdc\x78\x49\x3e\x72"
- "\xb1\xa9\xb5\x83\xcb\x08\x54\xb7"
- "\xad\x49\x3a\xae\x98\xce\xa6\x66"
- "\x10\x30\x90\x8c\x55\x83\xd7\x7c"
- "\x8b\xe6\x53\xde\xd2\x6e\x18\x21"
- "\x01\x52\xd1\x9f\x9d\xbb\x9c\x73"
- "\x57\xcc\x89\x09\x75\x9b\x78\x70"
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- "\x82\xd9\xec\xa2\x87\x68\x55\xf9"
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-
-static const u8 __initconst ctext12[735] __nonstring =
- "\x84\x0b\xdb\xd5\xb7\xa8\xfe\x20"
- "\xbb\xb1\x12\x7f\x41\xea\xb3\xc0"
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- "\x1c\x6f\x17\xca\x3b\x8e\x2d\x66"
- "\x4f\x4b\x36\x56\xcd\x1b\x59\xaa"
- "\xd2\x9b\x17\xb9\x58\xdf\x7b\x64"
- "\x8a\xff\x3b\x9c\xa6\xb5\x48\x9e"
- "\xaa\xe2\x5d\x09\x71\x32\x5f\xb6"
- "\x29\xbe\xe7\xc7\x52\x7e\x91\x82"
- "\x6b\x6d\x33\xe1\x34\x06\x36\x21"
- "\x5e\xbe\x1e\x2f\x3e\xc1\xfb\xea"
- "\x49\x2c\xb5\xca\xf7\xb0\x37\xea"
- "\x1f\xed\x10\x04\xd9\x48\x0d\x1a"
- "\x1c\xfb\xe7\x84\x0e\x83\x53\x74"
- "\xc7\x65\xe2\x5c\xe5\xba\x73\x4c"
- "\x0e\xe1\xb5\x11\x45\x61\x43\x46"
- "\xaa\x25\x8f\xbd\x85\x08\xfa\x4c"
- "\x15\xc1\xc0\xd8\xf5\xdc\x16\xbb"
- "\x7b\x1d\xe3\x87\x57\xa7\x2a\x1d"
- "\x38\x58\x9e\x8a\x43\xdc\x57"
- "\xd1\x81\x7d\x2b\xe9\xff\x99\x3a"
- "\x4b\x24\x52\x58\x55\xe1\x49\x14";
-
-static struct {
- const u8 *ptext;
- const u8 *ctext;
-
- u8 key[AES_MAX_KEY_SIZE] __nonstring;
- u8 iv[GCM_AES_IV_SIZE] __nonstring;
- u8 assoc[20] __nonstring;
-
- int klen;
- int clen;
- int plen;
- int alen;
-} const aesgcm_tv[] __initconst = {
- { /* From McGrew & Viega - http://citeseer.ist.psu.edu/656989.html */
- .klen = 16,
- .ctext = ctext0,
- .clen = sizeof(ctext0),
- }, {
- .klen = 16,
- .ptext = ptext1,
- .plen = sizeof(ptext1),
- .ctext = ctext1,
- .clen = sizeof(ctext1),
- }, {
- .key = "\xfe\xff\xe9\x92\x86\x65\x73\x1c"
- "\x6d\x6a\x8f\x94\x67\x30\x83\x08",
- .klen = 16,
- .iv = "\xca\xfe\xba\xbe\xfa\xce\xdb\xad"
- "\xde\xca\xf8\x88",
- .ptext = ptext2,
- .plen = sizeof(ptext2),
- .ctext = ctext2,
- .clen = sizeof(ctext2),
- }, {
- .key = "\xfe\xff\xe9\x92\x86\x65\x73\x1c"
- "\x6d\x6a\x8f\x94\x67\x30\x83\x08",
- .klen = 16,
- .iv = "\xca\xfe\xba\xbe\xfa\xce\xdb\xad"
- "\xde\xca\xf8\x88",
- .ptext = ptext3,
- .plen = sizeof(ptext3),
- .assoc = "\xfe\xed\xfa\xce\xde\xad\xbe\xef"
- "\xfe\xed\xfa\xce\xde\xad\xbe\xef"
- "\xab\xad\xda\xd2",
- .alen = 20,
- .ctext = ctext3,
- .clen = sizeof(ctext3),
- }, {
- .klen = 24,
- .ctext = ctext4,
- .clen = sizeof(ctext4),
- }, {
- .klen = 24,
- .ptext = ptext1,
- .plen = sizeof(ptext1),
- .ctext = ctext5,
- .clen = sizeof(ctext5),
- }, {
- .key = "\xfe\xff\xe9\x92\x86\x65\x73\x1c"
- "\x6d\x6a\x8f\x94\x67\x30\x83\x08"
- "\xfe\xff\xe9\x92\x86\x65\x73\x1c",
- .klen = 24,
- .iv = "\xca\xfe\xba\xbe\xfa\xce\xdb\xad"
- "\xde\xca\xf8\x88",
- .ptext = ptext6,
- .plen = sizeof(ptext6),
- .ctext = ctext6,
- .clen = sizeof(ctext6),
- }, {
- .klen = 32,
- .ctext = ctext7,
- .clen = sizeof(ctext7),
- }, {
- .klen = 32,
- .ptext = ptext1,
- .plen = sizeof(ptext1),
- .ctext = ctext8,
- .clen = sizeof(ctext8),
- }, {
- .key = "\xfe\xff\xe9\x92\x86\x65\x73\x1c"
- "\x6d\x6a\x8f\x94\x67\x30\x83\x08"
- "\xfe\xff\xe9\x92\x86\x65\x73\x1c"
- "\x6d\x6a\x8f\x94\x67\x30\x83\x08",
- .klen = 32,
- .iv = "\xca\xfe\xba\xbe\xfa\xce\xdb\xad"
- "\xde\xca\xf8\x88",
- .ptext = ptext9,
- .plen = sizeof(ptext9),
- .ctext = ctext9,
- .clen = sizeof(ctext9),
- }, {
- .key = "\xfe\xff\xe9\x92\x86\x65\x73\x1c"
- "\x6d\x6a\x8f\x94\x67\x30\x83\x08"
- "\xfe\xff\xe9\x92\x86\x65\x73\x1c"
- "\x6d\x6a\x8f\x94\x67\x30\x83\x08",
- .klen = 32,
- .iv = "\xca\xfe\xba\xbe\xfa\xce\xdb\xad"
- "\xde\xca\xf8\x88",
- .ptext = ptext10,
- .plen = sizeof(ptext10),
- .assoc = "\xfe\xed\xfa\xce\xde\xad\xbe\xef"
- "\xfe\xed\xfa\xce\xde\xad\xbe\xef"
- "\xab\xad\xda\xd2",
- .alen = 20,
- .ctext = ctext10,
- .clen = sizeof(ctext10),
- }, {
- .key = "\xfe\xff\xe9\x92\x86\x65\x73\x1c"
- "\x6d\x6a\x8f\x94\x67\x30\x83\x08"
- "\xfe\xff\xe9\x92\x86\x65\x73\x1c",
- .klen = 24,
- .iv = "\xca\xfe\xba\xbe\xfa\xce\xdb\xad"
- "\xde\xca\xf8\x88",
- .ptext = ptext11,
- .plen = sizeof(ptext11),
- .assoc = "\xfe\xed\xfa\xce\xde\xad\xbe\xef"
- "\xfe\xed\xfa\xce\xde\xad\xbe\xef"
- "\xab\xad\xda\xd2",
- .alen = 20,
- .ctext = ctext11,
- .clen = sizeof(ctext11),
- }, {
- .key = "\x62\x35\xf8\x95\xfc\xa5\xeb\xf6"
- "\x0e\x92\x12\x04\xd3\xa1\x3f\x2e"
- "\x8b\x32\xcf\xe7\x44\xed\x13\x59"
- "\x04\x38\x77\xb0\xb9\xad\xb4\x38",
- .klen = 32,
- .iv = "\x00\xff\xff\xff\xff\x00\x00\xff"
- "\xff\xff\x00\xff",
- .ptext = ptext12,
- .plen = sizeof(ptext12),
- .ctext = ctext12,
- .clen = sizeof(ctext12),
- }
-};
-
-static int __init libaesgcm_init(void)
-{
- for (int i = 0; i < ARRAY_SIZE(aesgcm_tv); i++) {
- u8 tagbuf[AES_BLOCK_SIZE];
- int plen = aesgcm_tv[i].plen;
- struct aesgcm_ctx ctx;
- static u8 buf[sizeof(ptext12)];
-
- if (aesgcm_expandkey(&ctx, aesgcm_tv[i].key, aesgcm_tv[i].klen,
- aesgcm_tv[i].clen - plen)) {
- pr_err("aesgcm_expandkey() failed on vector %d\n", i);
- return -ENODEV;
- }
-
- if (!aesgcm_decrypt(&ctx, buf, aesgcm_tv[i].ctext, plen,
- aesgcm_tv[i].assoc, aesgcm_tv[i].alen,
- aesgcm_tv[i].iv, aesgcm_tv[i].ctext + plen)
- || memcmp(buf, aesgcm_tv[i].ptext, plen)) {
- pr_err("aesgcm_decrypt() #1 failed on vector %d\n", i);
- return -ENODEV;
- }
-
- /* encrypt in place */
- aesgcm_encrypt(&ctx, buf, buf, plen, aesgcm_tv[i].assoc,
- aesgcm_tv[i].alen, aesgcm_tv[i].iv, tagbuf);
- if (memcmp(buf, aesgcm_tv[i].ctext, plen)) {
- pr_err("aesgcm_encrypt() failed on vector %d\n", i);
- return -ENODEV;
- }
-
- /* decrypt in place */
- if (!aesgcm_decrypt(&ctx, buf, buf, plen, aesgcm_tv[i].assoc,
- aesgcm_tv[i].alen, aesgcm_tv[i].iv, tagbuf)
- || memcmp(buf, aesgcm_tv[i].ptext, plen)) {
- pr_err("aesgcm_decrypt() #2 failed on vector %d\n", i);
- return -ENODEV;
- }
- }
- return 0;
-}
-module_init(libaesgcm_init);
-
-static void __exit libaesgcm_exit(void)
-{
-}
-module_exit(libaesgcm_exit);
-#endif
--
2.55.0
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