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Yandex Key Management Service
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In this article:

  • HTTP request
  • Path parameters
  • Body parameters
  • Response
  1. API reference
  2. REST
  3. Key Management Service API
  4. AsymmetricSignatureCrypto
  5. SignHash

Key Management Service API, REST: AsymmetricSignatureCrypto.SignHash

Written by
Yandex Cloud
Updated at December 9, 2025
  • HTTP request
  • Path parameters
  • Body parameters
  • Response

Signs hash value specified KMS key.

HTTP requestHTTP request

POST https://kms.api.cloud.yandex.net/kms/v1/asymmetricSignatureKeys/{keyId}:signHash

Path parametersPath parameters

Field

Description

keyId

string

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

The maximum string length in characters is 50.

Body parametersBody parameters

{
  "hash": "string"
}

Field

Description

hash

string (bytes)

Required field. Hash value to be signed.
Should be encoded with base64.

The maximum string length in characters is 4096.

ResponseResponse

HTTP Code: 200 - OK

{
  "keyId": "string",
  "signature": "string"
}

Field

Description

keyId

string

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

signature

string (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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