RFC 8017, "PKCS #1: RSA Cryptography Specifications Version 2.2", November 2016

Errata ID: 5576
Status: Held for Document Update
Type: Editorial
Publication Format(s) : TEXT
Reported By: Dave Thompson
Date Reported: 2018-12-16
Held for Document Update by: Benjamin Kaduk
Date Held: 2019-01-05

Section B.1 says:

   The object identifiers id-md2, id-md5, id-sha1, id-sha224, id-sha256,
   id-sha384, id-sha512, id-sha512/224, and id-sha512/256 identify the
   respective hash functions:
...
   The parameters field associated with id-sha1, id-sha224, id-sha256,
   id-sha384, id-sha512, id-sha512/224, and id-sha512/256 should
...
   Exception: When formatting the DigestInfoValue in EMSA-PKCS1-v1_5
   (see Section 9.2), the parameters field associated with id-sha1,
   id-sha224, id-sha256, id-sha384, id-sha512, id-sha512/224, and
   id-sha512/256 shall have a value of type NULL.  This is to maintain

It should say:

   The object identifiers id-md2, id-md5, id-sha1, id-sha224, id-sha256,
   id-sha384, id-sha512, id-sha512-224, and id-sha512-256 identify the
   respective hash functions:
...
   The parameters field associated with id-sha1, id-sha224, id-sha256,
   id-sha384, id-sha512, id-sha512-224, and id-sha512-256 should
...
   Exception: When formatting the DigestInfoValue in EMSA-PKCS1-v1_5
   (see Section 9.2), the parameters field associated with id-sha1,
   id-sha224, id-sha256, id-sha384, id-sha512, id-sha512-224, and
   id-sha512-256 shall have a value of type NULL.  This is to maintain

Notes:

ASN.1 identifiers don't allow slash. The actual ASN.1 code in the middle of B.1, and the ASN.1 module in C, correctly use hyphens for id-sha512-224 and id-sha512-256.

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