Class Crypto

Inheritance

System.Object

Crypto

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: SIPSorcery.Sys

Assembly: SIPSorcery.dll

Syntax

public class Crypto

Fields

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AES_IV_SIZE

Declaration

public const int AES_IV_SIZE = 16

Field Value

Type	Description
System.Int32

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AES_KEY_SIZE

Declaration

public const int AES_KEY_SIZE = 32

Field Value

Type	Description
System.Int32

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DEFAULT_RANDOM_LENGTH

Declaration

public const int DEFAULT_RANDOM_LENGTH = 10

Field Value

Type	Description
System.Int32

Methods

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createRandomSalt(Int32)

Declaration

public static byte[] createRandomSalt(int length)

Parameters

Type	Name	Description
System.Int32	length

Returns

Type	Description
System.Byte[]

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GetHash(String)

This version reads the whole file in at once. This is not great since it can consume a lot of memory if the file is large. However a buffered approach generates different hashes across different platforms.

Declaration

public static string GetHash(string filepath)

Parameters

Type	Name	Description
System.String	filepath

Returns

Type	Description
System.String

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GetRandomBytes(Byte[])

Fills a buffer with random bytes.

Declaration

public static void GetRandomBytes(byte[] buffer)

Parameters

Type	Name	Description
System.Byte[]	buffer	The buffer to fill.

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GetRandomByteString(Int32)

Gets an "X2" string representation of a random number.

Declaration

public static string GetRandomByteString(int byteLength)

Parameters

Type	Name	Description
System.Int32	byteLength	The byte length of the random number string to obtain.

Returns

Type	Description
System.String	A string representation of the random number. It will be twice the length of byteLength.

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GetRandomInt()

Returns a 10 digit random number.

Declaration

public static int GetRandomInt()

Returns

Type	Description
System.Int32

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GetRandomInt(Int32)

Returns a random number of a specified length.

Declaration

public static int GetRandomInt(int length)

Parameters

Type	Name	Description
System.Int32	length

Returns

Type	Description
System.Int32

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GetRandomInt(Int32, Int32)

Declaration

public static int GetRandomInt(int minValue, int maxValue)

Parameters

Type	Name	Description
System.Int32	minValue
System.Int32	maxValue

Returns

Type	Description
System.Int32

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GetRandomString()

Declaration

public static string GetRandomString()

Returns

Type	Description
System.String

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GetRandomString(Int32)

Declaration

public static string GetRandomString(int length)

Parameters

Type	Name	Description
System.Int32	length

Returns

Type	Description
System.String

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GetRandomUInt(Boolean)

Declaration

public static uint GetRandomUInt(bool noZero = false)

Parameters

Type	Name	Description
System.Boolean	noZero

Returns

Type	Description
System.UInt32

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GetRandomUInt16()

Declaration

public static ushort GetRandomUInt16()

Returns

Type	Description
System.UInt16

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GetRandomULong()

Declaration

public static ulong GetRandomULong()

Returns

Type	Description
System.UInt64

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GetSHA256Hash(Byte[])

Gets the HSA256 hash of an arbitrary buffer.

Declaration

public static string GetSHA256Hash(byte[] buffer)

Parameters

Type	Name	Description
System.Byte[]	buffer	The buffer to hash.

Returns

Type	Description
System.String	A hex string representing the hashed buffer.

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GetSHAHash(String[])

Declaration

public static byte[] GetSHAHash(params string[] values)

Parameters

Type	Name	Description
System.String[]	values

Returns

Type	Description
System.Byte[]

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GetSHAHashAsHex(String[])

Returns the hash with each byte as an X2 string. This is useful for situations where the hash needs to only contain safe ASCII characters.

Declaration

public static string GetSHAHashAsHex(params string[] values)

Parameters

Type	Name	Description
System.String[]	values	The list of string to concatenate and hash.

Returns

Type	Description
System.String	A string with "safe" (0-9 and A-F) characters representing the hash.

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GetSHAHashAsString(String[])

Declaration

public static string GetSHAHashAsString(params string[] values)

Parameters

Type	Name	Description
System.String[]	values

Returns

Type	Description
System.String

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LoadCertificate(StoreLocation, String, Boolean)

Attempts to load an X509 certificate from a Windows OS certificate store.

Declaration

public static X509Certificate2 LoadCertificate(StoreLocation storeLocation, string certificateSubject, bool checkValidity)

Parameters

Type	Name	Description
System.Security.Cryptography.X509Certificates.StoreLocation	storeLocation	The certificate store to load from, can be CurrentUser or LocalMachine.
System.String	certificateSubject	The subject name of the certificate to attempt to load.
System.Boolean	checkValidity	Checks if the certificate is current and has a verifiable certificate issuer list. Should be set to false for self issued certificates.

Returns

Type	Description
System.Security.Cryptography.X509Certificates.X509Certificate2	A certificate object if the load is successful otherwise null.

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Rand()

Declaration

public static int Rand()

Returns

Type	Description
System.Int32

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Rand(Int32)

Declaration

public static int Rand(int maxValue)

Parameters

Type	Name	Description
System.Int32	maxValue

Returns

Type	Description
System.Int32

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SymmetricDecrypt(String, String, Byte[])

Declaration

public static string SymmetricDecrypt(string key, string iv, byte[] cipherBytes)

Parameters

Type	Name	Description
System.String	key
System.String	iv
System.Byte[]	cipherBytes

Returns

Type	Description
System.String

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SymmetricDecrypt(String, String, String)

Declaration

public static string SymmetricDecrypt(string key, string iv, string cipherText)

Parameters

Type	Name	Description
System.String	key
System.String	iv
System.String	cipherText

Returns

Type	Description
System.String

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SymmetricEncrypt(String, String, Byte[])

Declaration

public static string SymmetricEncrypt(string key, string iv, byte[] plainTextBytes)

Parameters

Type	Name	Description
System.String	key
System.String	iv
System.Byte[]	plainTextBytes

Returns

Type	Description
System.String

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SymmetricEncrypt(String, String, String)

Declaration

public static string SymmetricEncrypt(string key, string iv, string plainText)

Parameters

Type	Name	Description
System.String	key
System.String	iv
System.String	plainText

Returns

Type	Description
System.String

Extension Methods

JSONWriter.ToJson(Object)