Object Digest

Information summary object

Inheritance

Member attributes

size

Integer, query the number of digest bytes of the current information digest algorithm

1
readonly Integer Digest.size;

Member function

update

Update binary summary information

1
Digest Digest.update(Buffer data);

Call parameters:

• data: Buffer, Binary data block

Return result:

• Digest, Returns the information summary object itself

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digest

Calculate and return summary

1
Value Digest.digest(String codec = "buffer");

Call parameters:

• codec: String, specify the encoding format, allowed values ​​are: "buffer", "hex", "base64", "utf8", or iconv Character set supported by the module

Return result:

• Value, Returns the summary representation of the specified encoding

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sign

Sign and return summary

1
Buffer Digest.sign(PKey key) async;

Call parameters:

• key: PKey, The signed private key

Return result:

• Buffer, Return the signed data

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verify

Verify that the signatures are consistent

1
2
Boolean Digest.verify(PKey key,
    Buffer sign) async;

Call parameters:

• key: PKey, Verify the public key of the signature
• sign: Buffer, Specify the signature to be verified

Return result:

• Boolean, Return the verified result

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toString

Returns the string representation of the object, generally returns "[Native Object]", the object can be re-implemented according to its own characteristics

1
String Digest.toString();

Return result:

• String, Returns the string representation of the object

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toJSON

Returns the JSON format representation of the object, generally returns a collection of readable attributes defined by the object

1
Value Digest.toJSON(String key = "");

Call parameters:

• key: String, unused

Return result:

• Value, Returns a value containing JSON serializable