EVP_MD-MDC2(7ssl)

EVP_MD-MDC27ssl

The mdc2 evp_md implementation

Overview

Support for computing MDC2 digests through the EVP_MD API.

Identity

This implementation is only available with the legacy provider, and is identified with the name "MDC2".

Gettable Parameters

This implementation supports the common gettable parameters described in EVP_MD-common(7).

Settable Context Parameters

This implementation supports the following OSSL_PARAM(3) entries, settable for an EVP_MD_CTX with EVP_MD_CTX_set_params(3):

"pad-type" (OSSL_DIGEST_PARAM_PAD_TYPE) <unsigned integer>

Sets the padding type to be used. Normally the final MDC2 block is padded with zeros. If the pad type is set to 2 then the final block is padded with 0x80 followed by zeros.

Releases

3 releases since Debian 12 (Bookworm); the text changed 2 times.

  1. 12
  2. 13
  3. Arch

From openssl 3.6.5-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.