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Key algorithms supported by KMS

**Table 1** Key algorithms supported by KMS
Key Type	Algorithm Type	Key Specifications	Description	Usage
Symmetric key	AES	AES_256	AES symmetric key	Encrypts and decrypts a small amount of data or data keys.
Symmetric key	SM4	SM4	SM4 symmetric key	Encrypts and decrypts a small amount of data or data keys.
Symmetric key	AES	HMAC_256 HMAC_384 HMAC_512	HMAC symmetric key	Generates and verifies a message authentication code
Symmetric key	SM3	HMAC_SM3	SM3 symmetric key	Generates and verifies a message authentication code
Asymmetric key	RSA	RSA_2048 RSA_3072 RSA_4096	RSA asymmetric password	Encrypts and decrypts a small amount of data or creates digital signatures.
Asymmetric key	ECC	EC_P256 EC_P384	Elliptic curve recommended by NIST	Digital signature
Asymmetric key	SM2	SM2	SM2 asymmetric key	Encrypts and decrypts a small amount of data or creates digital signatures.

Parent topic: KMS Related

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