CkPublicKey Java Reference Documentation

CkPublicKey

Current Version: 9.5.0.73

Contains an RSA, DSA, or ECC public key. Provides methods for importing and exporting to/from PEM, DER, PKCS8, PKCS1, and XML formats. Public keys can be imported/exported to both memory and files.

Object Creation

CkPublicKey obj = new CkPublicKey();

Properties

DebugLogFilePath
void get_DebugLogFilePath(CkString str);
String debugLogFilePath();
void put_DebugLogFilePath(String newVal);

If set to a file path, causes each Chilkat method or property call to automatically append it's LastErrorText to the specified log file. The information is appended such that if a hang or crash occurs, it is possible to see the context in which the problem occurred, as well as a history of all Chilkat calls up to the point of the problem. The VerboseLogging property can be set to provide more detailed information.

This property is typically used for debugging the rare cases where a Chilkat method call hangs or generates an exception that halts program execution (i.e. crashes). A hang or crash should generally never happen. The typical causes of a hang are:

  1. a timeout related property was set to 0 to explicitly indicate that an infinite timeout is desired,
  2. the hang is actually a hang within an event callback (i.e. it is a hang within the application code), or
  3. there is an internal problem (bug) in the Chilkat code that causes the hang.

top
KeySize
int get_KeySize();
Introduced in version 9.5.0.67

Gets the size (in bits) of the public key. For example: 1024, 2048, etc.

top
KeyType
void get_KeyType(CkString str);
String keyType();
Introduced in version 9.5.0.52

The type of public key. Can be "empty", "rsa", "dsa", or "ecc".

top
LastErrorHtml
void get_LastErrorHtml(CkString str);
String lastErrorHtml();

Provides information in HTML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

top
LastErrorText
void get_LastErrorText(CkString str);
String lastErrorText();

Provides information in plain-text format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

top
LastErrorXml
void get_LastErrorXml(CkString str);
String lastErrorXml();

Provides information in XML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

top
LastMethodSuccess
boolean get_LastMethodSuccess();
void put_LastMethodSuccess(boolean newVal);
Introduced in version 9.5.0.52

Indicate whether the last method call succeeded or failed. A value of true indicates success, a value of false indicates failure. This property is automatically set for method calls. It is not modified by property accesses. The property is automatically set to indicate success for the following types of method calls:

  • Any method that returns a string.
  • Any method returning a Chilkat object, binary bytes, or a date/time.
  • Any method returning a standard boolean status value where success = true and failure = false.
  • Any method returning an integer where failure is defined by a return value less than zero.

Note: Methods that do not fit the above requirements will always set this property equal to true. For example, a method that returns no value (such as a "void" in C++) will technically always succeed.

top
VerboseLogging
boolean get_VerboseLogging();
void put_VerboseLogging(boolean newVal);

If set to true, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is false. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.

top
Version
void get_Version(CkString str);
String version();

Version of the component/library, such as "9.5.0.63"

top

Methods

GetDer
boolean GetDer(boolean preferPkcs1, CkByteData outData);
Introduced in version 9.5.0.58

Returns the public key in binary DER format. If the key type (such as RSA) supports both PKCS1 and PKCS8 formats, then preferPkcs1 determine which format is returned.

Returns true for success, false for failure.

top
GetEncoded
boolean GetEncoded(boolean preferPkcs1, String encoding, CkString outStr);
String getEncoded(boolean preferPkcs1, String encoding);
Introduced in version 9.5.0.58

Returns the public key in DER format as an encoded string (such as base64 or hex). If the key type (such as RSA) supports both PKCS1 and PKCS8 formats, then preferPkcs1 determine which format is returned. The encoding specifies the encoding, which is typically "base64".

Returns true for success, false for failure.

top
GetJwk
boolean GetJwk(CkString outStr);
String getJwk();
Introduced in version 9.5.0.66

Gets the public key in JWK (JSON Web Key) format.

RSA public keys have this JWK format:

         {"kty":"RSA",
          "n": "0vx7agoebGcQSuuPiLJXZptN9 ... U8awapJzKnqDKgw",
          "e":"AQAB"}

ECC public keys have this JWK format:

         {"kty":"EC",
          "crv":"P-256",
          "x":"MKBCTNIcKUSDii11ySs3526iDZ8AiTo7Tu6KPAqv7D4",
          "y":"4Etl6SRW2YiLUrN5vfvVHuhp7x8PxltmWWlbbM4IFyM"}

Returns true for success, false for failure.

top
GetJwkThumbprint
boolean GetJwkThumbprint(String hashAlg, CkString outStr);
String getJwkThumbprint(String hashAlg);
Introduced in version 9.5.0.66

Returns the JWK thumbprint for the public key. This is the thumbprint of the JSON Web Key (JWK) as per RFC 7638.

Returns true for success, false for failure.

top
GetPem
boolean GetPem(boolean preferPkcs1, CkString outStr);
String getPem(boolean preferPkcs1);
Introduced in version 9.5.0.58

Returns the public key in PEM format. If the key type (such as RSA) supports both PKCS1 and PKCS8 formats, then preferPkcs1 determine which format is returned.

Returns true for success, false for failure.

top
GetXml
boolean GetXml(CkString outStr);
String getXml();

Gets the public key in XML format. The format depends on the key type. The key parts indicated by "..." are base64 encoded.

RSA public keys have this XML format:

<RSAKeyValue>
  <Modulus>...</Modulus>
  <Exponent>...</Exponent>
</RSAKeyValue>

DSA public keys have this XML format:

<DSAPublicKey>
    <P>...</P>
    <Q>...</Q>
    <G>...</G>
    <Y>...</Y>
</DSAPublicKey>

ECC public keys have this XML format:

<ECCPublicKey curve="CURVE_NAME" x="HEX_DATA" y="HEX_DATA">...</ECCPublicKey>

Returns true for success, false for failure.

top
LoadBase64
boolean LoadBase64(String keyStr);
Introduced in version 9.5.0.47

Loads a public key from base64-encoded DER (can be PKCS1 or PKCS8).

Returns true for success, false for failure.

top
LoadFromBinary
boolean LoadFromBinary(CkByteData keyBytes);
Introduced in version 9.5.0.58

Loads a public key from binary DER. Auto-recognizes both PKCS1 and PKCS8 formats.

Returns true for success, false for failure.

top
LoadFromFile
boolean LoadFromFile(String path);
Introduced in version 9.5.0.58

Loads a public key from a file. The file can be in any string or binary format such as binary DER (PKCS1 or PKCS8), PEM, XML, or encoded binary DER (such as base64 encoded binary DER). The format of the contents of the file is auto-recognized.

Starting in version 9.5.0.66, this method also supports loading the JWK (JSON Web Key) format.

Returns true for success, false for failure.

top
LoadFromString
boolean LoadFromString(String keyString);
Introduced in version 9.5.0.58

Loads a public key from any string format, such as PEM, XML, or encoded binary DER (such as base64 encoded binary DER). The format of the keyString is auto-recognized.

Starting in version 9.5.0.66, this method also supports loading the JWK (JSON Web Key) format.

Returns true for success, false for failure.

top
SaveDerFile
boolean SaveDerFile(boolean preferPkcs1, String path);
Introduced in version 9.5.0.58

Saves the public key to a file in binary DER format. If the key type (such as RSA) supports both PKCS1 and PKCS8 formats, then preferPkcs1 determine which format is returned.

Returns true for success, false for failure.

top
SaveLastError
boolean SaveLastError(String path);

Saves the last-error information (the contents of LastErrorXml) to an XML formatted file.

Returns true for success, false for failure.

top
SavePemFile
boolean SavePemFile(boolean preferPkcs1, String path);
Introduced in version 9.5.0.58

Saves the public key to a file in PEM format. If the key type (such as RSA) supports both PKCS1 and PKCS8 formats, then preferPkcs1 determine which format is returned.

Returns true for success, false for failure.

top
SaveXmlFile
boolean SaveXmlFile(String path);

Saves the public key to an XML file.

Returns true for success, false for failure.

top