TSBSymmetricCipherPadding type

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TSBSymmetricCipherPadding

Declared in

Filter: C# VB.NET Pascal C++ PHP Java

Defines possible padding of the data.

Declaration

[C#]
public enum TSBSymmetricCipherPadding { cpNone = 0, cpPKCS5 = 1, cpANSIX923 = 2 };

[VB.NET]
    Enum TSBSymmetricCipherPadding
        cpNone = 0
        cpPKCS5 = 1
        cpANSIX923 = 2
    End Enum

[Pascal]
TSBSymmetricCipherPadding = (cpNone, cpPKCS5);

[C++]
typedef uint8_t TSBSymmetricCipherPaddingRaw;
typedef enum { _cpNone = 0, _cpPKCS5 = 1, _cpANSIX923 = 2 } TSBSymmetricCipherPadding;

[PHP]
    class TSBSymmetricCipherPadding extends TSBBaseEnum {
        const cpNone = 0;
        const cpPKCS5 = 1;
        const cpANSIX923 = 2;
    }

[Java]
public enum TSBSymmetricCipherPadding { cpNone, cpPKCS5, cpANSIX923 }

Possible values:

[.NET]	[Pascal]	[C++]	Description
cpNone = 0	cpNone	_cpNone = 0	No padding. This mode can be used only if the data length is multiple of the block length OR if the stream cipher is used OR if stream mode (CTR, CFB8) is used
cpPKCS5 = 1	cpPKCS5	_cpPKCS5 = 1	PKCS#5 padding is used.

Description

Defines possible padding types.

Note: Original PKCS#5 padding is defined for 8 byte encryption blocks only. PKCS#7 generalizes the original definition by extending it to support any block size while leaving the padding method itself unchanged. Certain standards therefore refer to the described padding type as 'PKCS#7 padding'. This might be confusing because 'PKCS#5 padding' name is widely used to refer to the same kind of padding (thus de-facto extending the original PKCS#5 declaration beyond the 8 byte block size limitation).

We understand that it is not entirely correct, but we prefer to keep the PKCS#5 naming for backward compatibility with earlier versions of SecureBlackbox and to avoid confusion with other PKCS#7 types. So whenever you are required to support PKCS#7 symmetric cipher padding, use cpPKCS5 type.

Declared in

.NET:

Namespace: SBSymmetricCrypto
Assembly: SecureBlackbox

VCL:

Unit: SBSymmetricCrypto

Java:

Package: SecureBlackbox.Base.jar

C++:

sbsymmetriccrypto.h

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