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Yandex Key Management Service
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  • Terraform reference
    • Authentication with the API
      • Overview
        • Overview
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In this article:

  • gRPC request
  • AsymmetricSignRequest
  • AsymmetricSignResponse
  1. API reference
  2. gRPC
  3. Key Management Service API
  4. AsymmetricSignatureCrypto
  5. Sign

Key Management Service API, gRPC: AsymmetricSignatureCryptoService.Sign

Written by
Yandex Cloud
Updated at December 9, 2025
  • gRPC request
  • AsymmetricSignRequest
  • AsymmetricSignResponse

Signs data specified KMS key.

gRPC requestgRPC request

rpc Sign (AsymmetricSignRequest) returns (AsymmetricSignResponse)

AsymmetricSignRequestAsymmetricSignRequest

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

Field

Description

key_id

string

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

The maximum string length in characters is 50.

message

bytes

Required field. Message to sign.
Should be encoded with base64.

The maximum string length in characters is 32768.

AsymmetricSignResponseAsymmetricSignResponse

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

Field

Description

key_id

string

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

signature

bytes

Value of signature.
Signature value is produced in accordance with RFC 8017 for RSA
and is a DER-encoded object as defined by ANSI X9.62-2005 and RFC 3279 Section 2.2.3 for ECDSA.

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