io.polaris.core.crypto.otp

类 GoogleAuthenticatorConfig

java.lang.Object

io.polaris.core.crypto.otp.GoogleAuthenticatorConfig

public class GoogleAuthenticatorConfig
extends Object

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	GoogleAuthenticatorConfig.GoogleAuthenticatorConfigBuilder

构造器概要

构造器

构造器和说明
GoogleAuthenticatorConfig()

方法概要

限定符和类型	方法和说明
static GoogleAuthenticatorConfig.GoogleAuthenticatorConfigBuilder	builder()
int	getCodeDigits() Returns the number of digits in the generated code.
OtpHmacHashAlgorithm	getHmacHash() Returns the cryptographic hash function used to calculate the HMAC (Hash-based Message Authentication Code).
int	getKeyModulus() Returns the key module.
int	getNumberOfScratchCodes() Returns the number of scratch codes to generate.
int	getSecretBits() Returns the number of bits of the secret keys to generate.
long	getTimeStepSizeInMillis() Returns the time step size, in milliseconds, as specified by RFC 6238.
int	getWindowSize() Returns an integer value representing the number of windows of size timeStepSizeInMillis that are checked during the validation process, to account for differences between the server and the client clocks.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

GoogleAuthenticatorConfig

public GoogleAuthenticatorConfig()

方法详细资料

getKeyModulus

public int getKeyModulus()

Returns the key module.

返回:

the key module.

getCodeDigits

public int getCodeDigits()

Returns the number of digits in the generated code.

返回:

the number of digits in the generated code.

getNumberOfScratchCodes

public int getNumberOfScratchCodes()

Returns the number of scratch codes to generate. We are using Google's default of providing 5 scratch codes.

返回:

the number of scratch codes to generate.

getTimeStepSizeInMillis

public long getTimeStepSizeInMillis()

Returns the time step size, in milliseconds, as specified by RFC 6238. The default value is 30.000.

返回:

the time step size in milliseconds.

getWindowSize

public int getWindowSize()

Returns an integer value representing the number of windows of size timeStepSizeInMillis that are checked during the validation process, to account for differences between the server and the client clocks. The bigger the window, the more tolerant the library code is about clock skews.

We are using Google's default behaviour of using a window size equal to 3. The limit on the maximum window size, present in older versions of this library, has been removed.

返回:

the window size.

另请参阅:

timeStepSizeInMillis

getSecretBits

public int getSecretBits()

Returns the number of bits of the secret keys to generate. The length should always be a multiple of 8. The default value is 160 bits, and a value smaller than 128 is disallowed, as recommended by RFC 4226 §4.

返回:

the secret size in bits.

getHmacHash

public OtpHmacHashAlgorithm getHmacHash()

Returns the cryptographic hash function used to calculate the HMAC (Hash-based Message Authentication Code). This implementation uses the SHA1 hash function by default.

返回:

the HMAC hash function.

builder

public static GoogleAuthenticatorConfig.GoogleAuthenticatorConfigBuilder builder()