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Yandex Key Management Service
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In this article:

  • gRPC request
  • AsymmetricDecryptRequest
  • AsymmetricDecryptResponse
  1. API reference
  2. gRPC
  3. Key Management Service API
  4. AsymmetricEncryptionCrypto
  5. Decrypt

Key Management Service API, gRPC: AsymmetricEncryptionCryptoService.Decrypt

Written by
Yandex Cloud
Updated at December 9, 2025
  • gRPC request
  • AsymmetricDecryptRequest
  • AsymmetricDecryptResponse

Decrypts the given ciphertext with the specified key.

gRPC requestgRPC request

rpc Decrypt (AsymmetricDecryptRequest) returns (AsymmetricDecryptResponse)

AsymmetricDecryptRequestAsymmetricDecryptRequest

{
  "key_id": "string",
  "ciphertext": "bytes"
}

Field

Description

key_id

string

Required field. ID of the asymmetric KMS key to use for decryption.

The maximum string length in characters is 50.

ciphertext

bytes

Required field. Ciphertext to be decrypted.
Should be encoded with base64.

The maximum string length in characters is 32768.

AsymmetricDecryptResponseAsymmetricDecryptResponse

{
  "key_id": "string",
  "plaintext": "bytes"
}

Field

Description

key_id

string

ID of the asymmetric KMS key that was used for decryption.

plaintext

bytes

Decrypted plaintext.

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