diff options
Diffstat (limited to 'include/crypto/xts.h')
| -rw-r--r-- | include/crypto/xts.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/crypto/xts.h b/include/crypto/xts.h index 0f8dba69feb4..a233c1054df2 100644 --- a/include/crypto/xts.h +++ b/include/crypto/xts.h @@ -35,6 +35,13 @@ static inline int xts_verify_key(struct crypto_skcipher *tfm, if (keylen % 2) return -EINVAL; + /* + * In FIPS mode only a combined key length of either 256 or + * 512 bits is allowed, c.f. FIPS 140-3 IG C.I. + */ + if (fips_enabled && keylen != 32 && keylen != 64) + return -EINVAL; + /* ensure that the AES and tweak key are not identical */ if ((fips_enabled || (crypto_skcipher_get_flags(tfm) & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)) && |