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Key Management Service

DokumentasiKey Management Service

Asymmetric key decryption

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Terakhir diperbarui: 2026-07-30 16:45:13
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Overview

KMS provides asymmetric key decryption interfaces for SM2 and RSA, as follows:
API Name
API Description
Description
AsymmetricSm2Decrypt
SM2 Decryption
AsymmetricRsaDecrypt
RSA Decryption
The examples in this document use the Tencent Cloud command-line tool TCCLI. Subsequently, you can make calls using any supported programming language.

Asymmetric Decryption

RSA Decryption

Inputs

tccli kms AsymmetricRsaDecrypt --KeyId 22d79428-61d9-11ea-a3c8-525400****** --Algorithm RSAES_OAEP_SHA_256 --Ciphertext "DEb/JBmuhVkYS34r0pR7Gv1WTc4khkxqf7S1WIr7/GXsAs/tfP/v/2+1SwsIG7BqW7kUZqr38/FGkaIEqYeewot37t3+Jx0t5w7/yXkUnyUfyfPpXlHXf94g3wFOjijEWWsjWWzaXTkTr8uWOfRBenq+bcaY783FIy03XjJW/Y0wKWjD3tULvKndCJO/3bkb65kn1Fbsfm20xrUUwqV/p2DVLXBdG1ymr0DjsbG7R0tb3ytc2LmH33YPAQE32eP27ciKzSml+w2tdUM3dw3nEZcTGMs1wFDGk0O1WB052jZ7TitUD9zCftFv2dKlZD3LRx1+vHqpNVgPhLmL******=="

Output

{
    "Response": {
        "RequestId": "6758cbf5-5e21-4c37-a2cf-8d47f5******",
        "KeyId": "22d79428-61d9-11ea-a3c8-525400******",
        "Plaintext": "dGVzdAo="
    }
}

SM2 Decryption

Inputs

tccli kms AsymmetricSm2Decrypt --KeyId 22d79428-61d9-11ea-a3c8-525400****** --Ciphertext "DEb/JBmuhVkYS34r0pR7Gv1WTc4khkxqf7S1WIr7/GXsAs/tfP/v/2+1SwsIG7BqW7kUZqr38/FGkaIEqYeewot37t3+Jx0t5w7/yXkUnyUfyfPpXlHXf94g3wFOjijEWWsjWWzaXTkTr8uWOfRBenq+bcaY783FIy03XjJW/Y0wKWjD3tULvKndCJO/3bkb65kn1Fbsfm20xrUUwqV/p2DVLXBdG1ymr0DjsbG7R0tb3ytc2LmH33YPAQE32eP27ciKzSml+w2tdUM3dw3nEZcTGMs1wFDGk0O1WB052jZ7TitUD9zCftFv2dKlZD3LRx1+vHqpNVgPhLmL******=="

Output

{
    "Response": {
        "RequestId": "6758cbf5-5e21-4c37-a2cf-8d47f5******",
        "KeyId": "22d79428-61d9-11ea-a3c8-525400******",
        "Plaintext": "dGVzdAo="
    }
}

Viewing the Public Key

Overview

Obtain the public key information for the specified KeyId. For the API documentation, see GetPublicKey.
The examples in this document use the Tencent Cloud command-line tool TCCLI. Subsequently, you can make calls using any supported programming language.

Example

Inputs

tccli kms GetPublicKey  --KeyId 22d79428-61d9-11ea-a3c8-525400******

Output:

{
    "Response": {
        "RequestId": "408fa858-cd6d-4011-b8a0-653805******",
        "KeyId": "22d79428-61d9-11ea-a3c8-525400******",
        "PublicKey": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzQk7x7ladgVFEEGYDbeUc5aO9TfiDplIO4WovBOVpIFoDS31n46YiCGiqj67qmYslZ2KMGCd3Nt+a+jdzwFiTx3O87wdKWcF2vHL9Ja+95VuCmKYeK1uhPyqqj4t9Ch/cyvxb0xaLBzztTQ9dXCxDhwj08b24T+/FYB9a4icuqQypCvjY1X9j8ivAsPEdHZoc9Di7JXBTZdVeZC1igCVgl6mwzdHTJCRydE2976zyjC7l6QsRT6pRsMF3696N07WnaKgGv3K/Zr/6RbxebLqtmNypNERIR7jTCt9L+fgYOX7anmuF5v7z0GfFsen9Tqb1LsZuQR0vgqCauOjL2CL1Q******",
        "PublicKeyPem": "-----BEGIN PUBLIC KEY-----\\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzQk7x7ladgVFEEGYDbeU\\nc5aO9TfiDplIO4WovBOVpIFoDS31n46YiCGiqj67qmYslZ2KMGCd3Nt+a+jdzwFi\\nTx3O87wdKWcF2vHL9Ja+95VuCmKYeK1uhPyqqj4t9Ch/cyvxb0xaLBzztTQ9dXCx\\nDhwj08b24T+/FYB9a4icuqQypCvjY1X9j8ivAsPEdHZoc9Di7JXBTZdVeZC1igCV\\ngl6mwzdHTJCRydE2976zyjC7l6QsRT6pRsMF3696N07WnaKgGv3K/Zr/6RbxebLq\\ntmNypNERIR7jTCt9L+fgYOX7anmuF5v7z0GfFsen9Tqb1LsZuQR0vgqCau******\\n1QIDAQAB\\n-----END PUBLIC KEY-----\\n"
    }
}

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