Example usage for org.bouncycastle.asn1.tsp MessageImprint MessageImprint

Introduction

In this page you can find the example usage for org.bouncycastle.asn1.tsp MessageImprint MessageImprint.

Prototype

public MessageImprint(AlgorithmIdentifier hashAlgorithm, byte[] hashedMessage) 

Source Link

Usage

From source file:com.guardtime.asn1.TimestampRequest.java

License:Apache License

/**
 * Composes a new {@code TimeStampReq} structure containing the given
 * hash value and no optional fields.//from  w  w w  .  j av a  2s  .c o m
 *
 * @param algOid
 *            identifier of the hash algorithm that was used to hash the
 *            data.
 * @param hashedMessage
 *            hash value of the data to be timestamped.
 * @return a new timestamp request.
 */
public static TimestampRequest compose(String algOid, byte[] hashedMessage) {
    if (algOid == null) {
        throw new IllegalArgumentException("invalid hash algorithm: null");
    } else if (hashedMessage == null) {
        throw new IllegalArgumentException("invalid hashed message: null");
    }

    AlgorithmIdentifier algId = new AlgorithmIdentifier(new ASN1ObjectIdentifier(algOid));
    MessageImprint mi = new MessageImprint(algId, hashedMessage);
    TimeStampReq req = new TimeStampReq(mi, null, null, null, null);
    return new TimestampRequest(req);
}

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