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crypto: inside-secure - Added support for the CHACHA20 skcipher

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Added support for the CHACHA20 skcipher algorithm.
Tested on an eip197c-iesb configuration in the Xilinx VCU118 devboard,
passes all testmgr vectors plus the extra fuzzing tests.

changes since v1:
- rebased on top of DES library changes done on cryptodev/master
- fixed crypto/Kconfig so that generic fallback is compiled as well

changes since v2:
- made switch entry SAFEXCEL_AES explit and added empty default, as
  requested by Antoine Tenart. Also needed to make SM4 patches apply.

changes since v3:
- nothing

Signed-off-by: Pascal van Leeuwen <pvanleeuwen@verimatrix.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Pascal van Leeuwen
2019-09-18 23:25:56 +02:00
committed by Herbert Xu
parent c98429297d
commit 4a593fb35d
3 changed files with 86 additions and 1 deletions
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3
drivers/crypto/inside-secure/safexcel.h
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@@ -358,6 +358,7 @@ struct safexcel_context_record {
#define CONTEXT_CONTROL_CRYPTO_ALG_AES128 (0x5 << 17)
#define CONTEXT_CONTROL_CRYPTO_ALG_AES192 (0x6 << 17)
#define CONTEXT_CONTROL_CRYPTO_ALG_AES256 (0x7 << 17)
#define CONTEXT_CONTROL_CRYPTO_ALG_CHACHA20 (0x8 << 17)
#define CONTEXT_CONTROL_DIGEST_PRECOMPUTED (0x1 << 21)
#define CONTEXT_CONTROL_DIGEST_XCM (0x2 << 21)
#define CONTEXT_CONTROL_DIGEST_HMAC (0x3 << 21)
@@ -378,6 +379,7 @@ struct safexcel_context_record {
/* control1 */
#define CONTEXT_CONTROL_CRYPTO_MODE_ECB (0 << 0)
#define CONTEXT_CONTROL_CRYPTO_MODE_CBC (1 << 0)
#define CONTEXT_CONTROL_CHACHA20_MODE_256_32 (2 << 0)
#define CONTEXT_CONTROL_CRYPTO_MODE_OFB (4 << 0)
#define CONTEXT_CONTROL_CRYPTO_MODE_CFB (5 << 0)
#define CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD (6 << 0)
@@ -858,5 +860,6 @@ extern struct safexcel_alg_template safexcel_alg_crc32;
extern struct safexcel_alg_template safexcel_alg_cbcmac;
extern struct safexcel_alg_template safexcel_alg_xcbcmac;
extern struct safexcel_alg_template safexcel_alg_cmac;
extern struct safexcel_alg_template safexcel_alg_chacha20;
#endif