Date: Thu, 4 Jun 2020 22:16:19 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r361809 - head/share/man/man7 Message-ID: <202006042216.054MGJ8Y037752@repo.freebsd.org>
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Author: jhb Date: Thu Jun 4 22:16:19 2020 New Revision: 361809 URL: https://svnweb.freebsd.org/changeset/base/361809 Log: Update crypto(7) to list current ciphers. Add descriptions of AES-CCM, Camellia-CBC, and Chacha20. Reviewed by: cem (previous version) Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D24963 Modified: head/share/man/man7/crypto.7 Modified: head/share/man/man7/crypto.7 ============================================================================== --- head/share/man/man7/crypto.7 Thu Jun 4 21:02:24 2020 (r361808) +++ head/share/man/man7/crypto.7 Thu Jun 4 22:16:19 2020 (r361809) @@ -27,7 +27,7 @@ .\" .\" $FreeBSD$ .\" -.Dd May 22, 2020 +.Dd June 04, 2020 .Dt CRYPTO 7 .Os .Sh NAME @@ -43,7 +43,7 @@ The following cryptographic algorithms that are part o framework have the following requirements. .Pp Cipher algorithms: -.Bl -tag -width ".Dv CRYPTO_AES_CBC" +.Bl -tag -width "CRYPTO_AES_NIST_GCM_16" .It Dv CRYPTO_AES_CBC .Bl -tag -width "Block size :" -compact -offset indent .It IV size : @@ -54,7 +54,33 @@ Cipher algorithms: 16, 24 or 32 .El .Pp -This algorithm implements Cipher-block chaining. +This algorithm implements Cipher Block Chaining. +.It Dv CRYPTO_AES_CCM_16 +.Bl -tag -width "Block size :" -compact -offset indent +.It IV size : +12 +.It Block size : +16 +.It Key size : +16, 24 or 32 +.It Digest size : +16 +.El +.Pp +This algorithm implements Counter with CBC-MAC Mode. +This cipher uses AEAD +.Pq Authenticated Encryption with Associated Data +mode. +.Pp +The authentication tag will be read from or written to the offset +.Va crp_digest_start +specified in the request. +.Pp +Note: The nonce for each request must be provided in +.Fa crp_iv +via the +.Dv CRYPTO_F_IV_SEPARATE +flag. .It Dv CRYPTO_AES_NIST_GCM_16 .Bl -tag -width "Block size :" -compact -offset indent .It IV size : @@ -72,11 +98,15 @@ This cipher uses AEAD .Pq Authenticated Encryption with Associated Data mode. .Pp -The authentication tag will be read/written from/to the offset +The authentication tag will be read from or written to the offset .Va crp_digest_start specified in the request. .Pp -Note: You must provide an IV on every call. +Note: The nonce for each request must be provided in +.Fa crp_iv +via the +.Dv CRYPTO_F_IV_SEPARATE +flag. .It Dv CRYPTO_AES_ICM .Bl -tag -width "Block size :" -compact -offset indent .It IV size : @@ -95,7 +125,11 @@ This does mean that if a counter is required that roll the transaction need to be split into two parts where the counter rolls over. The counter incremented as a 128-bit big endian number. .Pp -Note: You must provide an IV on every call. +Note: The counter for each request must be provided in +.Fa crp_iv +via the +.Dv CRYPTO_F_IV_SEPARATE +flag. .It Dv CRYPTO_AES_XTS .Bl -tag -width "Block size :" -compact -offset indent .It IV size : @@ -111,6 +145,26 @@ as defined in NIST SP 800-38E. .Pp NOTE: The ciphertext stealing part is not implemented which is why this cipher is listed as having a block size of 16 instead of 1. +.It Dv CRYPTO_CAMELLIA_CBC +.Bl -tag -width "Block size :" -compact -offset indent +.It IV size : +16 +.It Block size : +16 +.It Key size : +16, 24 or 32 +.El +.Pp +This algorithm implements Cipher Block Chaining. +.It Dv CRYPTO_CHACHA20 +.Bl -tag -width "Block size :" -compact -offset indent +.It IV size : +16 +.It Block size : +1 +.It Key size : +16 or 32 +.El .El .Sh HISTORY The
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