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

   
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