CertID (Bouncy Castle Library 1.85 API Specification)
Date: 2026-07-12

org.bouncycastle.asn1.ocsp

## Class CertID

- java.lang.Object
- - org.bouncycastle.asn1.ASN1Object
  - - org.bouncycastle.asn1.ocsp.CertID

- All Implemented Interfaces:
    ASN1Encodable, Encodable

      public class CertID
      extends ASN1Object

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `CertID(AlgorithmIdentifier hashAlgorithm, ASN1OctetString issuerNameHash, ASN1OctetString issuerKeyHash, ASN1Integer serialNumber)`

  - ### Method Summary

    All Methods Static Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `equals(java.lang.Object o)`
    `AlgorithmIdentifier` | `getHashAlgorithm()`
    `static CertID` | `getInstance(ASN1TaggedObject obj, boolean explicit)`
    `static CertID` | `getInstance(java.lang.Object obj)`
    `ASN1OctetString` | `getIssuerKeyHash()`
    `ASN1OctetString` | `getIssuerNameHash()`
    `ASN1Integer` | `getSerialNumber()`
    `int` | `hashCode()`
    `ASN1Primitive` | `toASN1Primitive()` Produce an object suitable for an ASN1OutputStream.

    - ### Methods inherited from class org.bouncycastle.asn1.ASN1Object

      `encodeTo, encodeTo, getEncoded, getEncoded, hasEncodedTagValue`

    - ### Methods inherited from class java.lang.Object

      `clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### CertID

          public CertID(AlgorithmIdentifier hashAlgorithm,
                        ASN1OctetString issuerNameHash,
                        ASN1OctetString issuerKeyHash,
                        ASN1Integer serialNumber)

  - ### Method Detail

    - #### getInstance

          public static CertID getInstance(ASN1TaggedObject obj,
                                           boolean explicit)

    - #### getInstance

          public static CertID getInstance(java.lang.Object obj)

    - #### getHashAlgorithm

          public AlgorithmIdentifier getHashAlgorithm()

    - #### getIssuerNameHash

          public ASN1OctetString getIssuerNameHash()

    - #### getIssuerKeyHash

          public ASN1OctetString getIssuerKeyHash()

    - #### getSerialNumber

          public ASN1Integer getSerialNumber()

    - #### equals

          public boolean equals(java.lang.Object o)

      Overrides:
        `equals` in class `ASN1Object`

    - #### hashCode

          public int hashCode()

      Overrides:
        `hashCode` in class `ASN1Object`

    - #### toASN1Primitive

          public ASN1Primitive toASN1Primitive()

      Produce an object suitable for an ASN1OutputStream.

           CertID          ::=     SEQUENCE {
               hashAlgorithm       AlgorithmIdentifier,
               issuerNameHash      OCTET STRING, -- Hash of Issuer's DN
               issuerKeyHash       OCTET STRING, -- Hash of Issuers public key
               serialNumber        CertificateSerialNumber }

      Specified by:
        `toASN1Primitive` in interface `ASN1Encodable`
      Specified by:
        `toASN1Primitive` in class `ASN1Object`
      Returns:
        a primitive representation of this object.