ICspAlgorithm::get_MinLength method (certenroll.h)

The MinLength property retrieves the minimum permitted length for a key. This property is web enabled.

This property is read-only.

Syntax

HRESULT get_MinLength(
  LONG *pValue
);

Parameters

pValue

Return value

None

Remarks

The DefaultLength, IncrementLength, MaxLength, and MinLength properties can vary by algorithm and provider. The following table lists a few example maximum, minimum and default key sizes.

Algorithm OID	Cryptographic provider	Key length (bits)
XCN_OID_OIWSEC_desCBC(1.3.14.3.2.7)	Microsoft Base DSS and Diffie-Hellman Cryptographic Provider Microsoft Enhanced Cryptographic Provider v1.0 Microsoft DH Schannel Cryptographic Provider Microsoft Enhanced RSA and AES Cryptographic Provider	Minimum: 56 Maximum: 56 Default: 56
XCN_OID_RSA_DES_EDE3_CBC(1.2.840.113549.3.7)	Microsoft Base DSS and Diffie-Hellman Cryptographic Provider Microsoft Enhanced Cryptographic Provider v1.0 Microsoft DH Schannel Cryptographic Provider Microsoft Enhanced RSA and AES Cryptographic Provider Microsoft Exchange Cryptographic Provider v1.0	Minimum: 168 Maximum: 168 Default: 168
XCN_OID_RSA_RSA(1.2.840.113549.1.1.1)	Microsoft Enhanced Cryptographic Provider v1.0 Microsoft Enhanced RSA and AES Cryptographic Provider Microsoft RSA Schannel Cryptographic Provider Microsoft Strong Cryptographic Provider	Minimum: 384 Maximum: 16,384 Default: 1,024 Increment: 8
XCN_OID_X957_DSA(1.2.840.10040.4.1)	Microsoft Base DSS and Diffie-Hellman Cryptographic Provider Microsoft Base DSS Cryptographic Provider Microsoft DH Schannel Cryptographic Provider Microsoft Enhanced DSS and Diffie-Hellman Cryptographic Provider	Minimum: 512 Maximum: 1,024 Default: 1,024 Increment: 64

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 [desktop apps only]
Target Platform	Windows
Header	certenroll.h
DLL	CertEnroll.dll

See also

ICspAlgorithm