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◆ CRYPT_EAL_HkdfExpand()
| int32_t CRYPT_EAL_HkdfExpand |
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CRYPT_MAC_AlgId |
id, |
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const uint8_t * |
key, |
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uint32_t |
keyLen, |
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const uint8_t * |
info, |
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uint32_t |
infoLen, |
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uint8_t * |
out, |
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uint32_t |
len |
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) |
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HKDF
- 参数
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| id | [IN] MAC algorithm ID (Only the HMAC algorithm ID is supported, including CRYPT_MAC_HMAC_SHA1, CRYPT_MAC_HMAC_SHA224, CRYPT_MAC_HMAC_SHA256, CRYPT_MAC_HMAC_SHA384, CRYPT_MAC_HMAC_SHA512) |
| key | [IN] Pseudorandom key, at least hashLen (generally the output of the Extract function) |
| keyLen | [IN] Pseudorandom key length |
| info | [IN] Additional information about the user, which is optional. |
| infoLen | [IN] Length of the additional information. The value can be 0. [0,0xFFFFFFFF] |
| out | [OUT] Derive the key. |
| len | [IN] Derived key length, any integer other than 0. The maximum value is as follows: The maximum value of CRYPT_MAC_HMAC_SHA1 is 5100. The maximum value of CRYPT_MAC_HMAC_SHA224 is 7140. The maximum value of CRYPT_MAC_HMAC_SHA256 is 8160. The maximum value of CRYPT_MAC_HMAC_SHA384 is 12240. The maximum value of CRYPT_MAC_HMAC_SHA512 is 16320, |
- 返回值
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