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Increase WC_CMAC_TAG_MIN_SZ to SP800-38b recommendation

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Lealem Amedie
2026-08-10 13:25:40 -06:00
parent 9c113d34f1
commit d011a614e7
1 changed files with 6 additions and 7 deletions
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wolfssl/wolfcrypt/cmac.h
+6 -7
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@@ -99,14 +99,13 @@ struct Cmac {
#ifndef NO_AES
#define WC_CMAC_TAG_MAX_SZ WC_AES_BLOCK_SIZE
#define WC_CMAC_TAG_MIN_SZ (WC_AES_BLOCK_SIZE/4)
#else
/* Reasonable defaults */
#define WC_CMAC_TAG_MAX_SZ 16
#define WC_CMAC_TAG_MIN_SZ 4
/* SP800-38b recommends a minimum tag length of 64-bits */
#ifndef WC_CMAC_TAG_MAX_SZ
#define WC_CMAC_TAG_MAX_SZ 16
#endif
#ifndef WC_CMAC_TAG_MIN_SZ
#define WC_CMAC_TAG_MIN_SZ 8
#endif
#if FIPS_VERSION3_GE(6,0,0)