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◆ CRYPT_EAL_CipherCtrl()
| int32_t CRYPT_EAL_CipherCtrl |
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CRYPT_EAL_CipherCtx * |
ctx, |
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int32_t |
type, |
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void * |
data, |
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uint32_t |
len |
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) |
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Set the mode ctx parameters in the CTX. parameter data type Length(len):number of data bytes CRYPT_CTRL_GET_IV uint8_t array The length of the IV depends on the corresponding algorithm, see the mapping in CRYPT_EAL_CipherInit CRYPT_CTRL_SET_IV uint8_t array The length of the IV depends on the corresponding algorithm, see the mapping in CRYPT_EAL_CipherInit. CRYPT_CTRL_SET_AAD uint8_t array It is used only for AEAD calculation. The length is related to the corresponding AEAD algorithm. CRYPT_CTRL_GET_TAG uint8_t array It is used only for AEAD calculation. The length is the tagLen value set by the user. CRYPT_CTRL_SET_COUNT uint8_t[4] length(len) 4 CRYPT_CTRL_SET_TAGLEN uint32_t length(len) 4 CRYPT_CTRL_SET_MSGLEN uint64_t length(len) 8 CRYPT_CTRL_SET_FEEDBACKSIZE uint32_t length(len) 4 CRYPT_CTRL_GET_FEEDBACKSIZE uint32_t pointer sizeof(*uint32_t) CRYPT_CTRL_GET_BLOCKSIZE uint32_t length(len) 4 CRYPT_CTRL_SET_SM4_CONSTTIME NULL 0
- 注意
- If the function is called by an external user and the error stack is concerned, it is recommended that BSL_ERR_ClearError() be called before this function is called.
- 参数
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| ctx | [IN] Symmetric encryption/decryption handle |
| type | [IN] Parameter type |
| data | [IN/OUT] Input and output data |
| len | [OUT] Data length |
- 返回值
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