maintain targets 1.7.0 compat

DESCRIPTION

@@ -1,14 +1,13 @@
 Package: secretbase
 Type: Package
 Title: Cryptographic Hash and Extendable-Output Functions
-Version: 0.5.0.9002
-Description: Fast and memory-efficient streaming hash functions. Performs direct
-    hashing of strings and raw vectors. Stream hashes files potentially larger
-    than memory, as well as in-memory objects through R's serialization
-    mechanism. Implementations include the SHA-256, SHA-3 and 'Keccak'
-    cryptographic hash functions, SHAKE256 extendable-output function (XOF), and
-    'SipHash' pseudo-random function. Base 64 encoding and decoding of strings,
-    raw vectors and serialized objects.
+Version: 0.5.0.9003
+Description: Fast and memory-efficient streaming hash functions and base64
+    encoding and decoding. Performs direct hashing of strings and raw vectors.
+    Stream hashes files potentially larger than memory, as well as in-memory
+    objects through R's serialization mechanism. Implementations include the
+    SHA-256, SHA-3 and 'Keccak' cryptographic hash functions, SHAKE256
+    extendable-output function (XOF), and 'SipHash' pseudo-random function.
 Authors@R: 
     c(person(given = "Charlie",
              family = "Gao",

NEWS.md

@@ -1,4 +1,4 @@
-# secretbase 0.5.0.9002 (development)
+# secretbase 0.5.0.9003 (development)
 
 * Adds base64 encoding and decoding.
 * `sha3()` restricts 'bit' argument to one of 224, 256, 384 or 512.

R/secret.R

@@ -18,13 +18,12 @@
 
 #' secretbase: Cryptographic Hash and Extendable-Output Functions
 #'
-#' Fast and memory-efficient streaming hash functions. Performs direct hashing
-#'     of strings and raw vectors. Stream hashes files potentially larger than
-#'     memory, as well as in-memory objects through R's serialization mechanism.
-#'     Implementations include the SHA-256, SHA-3 and 'Keccak' cryptographic
-#'     hash functions, SHAKE256 extendable-output function (XOF), and 'SipHash'
-#'     pseudo-random function. Base 64 encoding and decoding of strings, raw
-#'     vectors and serialized objects.
+#' Fast and memory-efficient streaming hash functions and base64 encoding and
+#'     decoding. Performs direct hashing of strings and raw vectors. Stream
+#'     hashes files potentially larger than memory, as well as in-memory objects
+#'     through R's serialization mechanism. Implementations include the SHA-256,
+#'     SHA-3 and 'Keccak' cryptographic hash functions, SHAKE256
+#'     extendable-output function (XOF), and 'SipHash' pseudo-random function.
 #'
 #' @encoding UTF-8
 #' @author Charlie Gao \email{charlie.gao@@shikokuchuo.net}

README.Rmd

@@ -31,12 +31,10 @@ knitr::opts_chunk$set(
  \/_______/
 ```
 
-Fast and memory-efficient streaming hash functions. Performs direct hashing of strings and raw vectors. Stream hashes files potentially larger than memory, as well as in-memory objects through R's serialization mechanism.
+Fast and memory-efficient streaming hash functions and base64 encoding and decoding. Performs direct hashing of strings and raw vectors. Stream hashes files potentially larger than memory, as well as in-memory objects through R's serialization mechanism.
 
 Implementations include the SHA-256, SHA-3 and 'Keccak' cryptographic hash functions, SHAKE256 extendable-output function (XOF), and 'SipHash' pseudo-random function.
 
-Base64 encoding and decoding of strings, raw vectors and serialized objects.
-
 The SHA-3 Secure Hash Standard was published by the National Institute of Standards and Technology (NIST) in 2015 at [doi:10.6028/NIST.FIPS.202](https://dx.doi.org/10.6028/NIST.FIPS.202). SHA-3 is based on the Keccak algorithm, designed by G. Bertoni, J. Daemen, M. Peeters and G. Van Assche. The SHA-256 Secure Hash Standard was published by NIST in 2002 at <https://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf>. The SipHash family of pseudo-random functions by Jean-Philippe Aumasson and Daniel J. Bernstein was published in 2012 at <https://ia.cr/2012/351>.<sup>[1]</sup>
 
 The SHA-256, SHA-3, Keccak, and base64 implementations are based on those by the 'Mbed TLS' Trusted Firmware Project at <https://www.trustedfirmware.org/projects/mbed-tls>. The SipHash implementation is based on that of Daniele Nicolodi, David Rheinsberg and Tom Gundersen at <https://github.com/c-util/c-siphash>, which is in turn based on the reference implementation by Jean-Philippe Aumasson and Daniel J. Bernstein released to the public domain at <https://github.com/veorq/SipHash>.

README.md

@@ -21,18 +21,15 @@ badge](https://shikokuchuo.r-universe.dev/badges/secretbase?color=e4723a)](https
     \  /  base /
      \/_______/
 
-Fast and memory-efficient streaming hash functions. Performs direct
-hashing of strings and raw vectors. Stream hashes files potentially
-larger than memory, as well as in-memory objects through R’s
-serialization mechanism.
+Fast and memory-efficient streaming hash functions and base64 encoding
+and decoding. Performs direct hashing of strings and raw vectors. Stream
+hashes files potentially larger than memory, as well as in-memory
+objects through R’s serialization mechanism.
 
 Implementations include the SHA-256, SHA-3 and ‘Keccak’ cryptographic
 hash functions, SHAKE256 extendable-output function (XOF), and ‘SipHash’
 pseudo-random function.
 
-Base64 encoding and decoding of strings, raw vectors and serialized
-objects.
-
 The SHA-3 Secure Hash Standard was published by the National Institute
 of Standards and Technology (NIST) in 2015 at
 [doi:10.6028/NIST.FIPS.202](https://dx.doi.org/10.6028/NIST.FIPS.202).

src/secret.c

@@ -342,6 +342,8 @@ static SEXP secretbase_sha3_impl(const SEXP x, const SEXP bits, const SEXP conve
       id = MBEDTLS_SHA3_224 + offset; break;
     case 384:
       id = MBEDTLS_SHA3_384 + offset; break;
+    case 32: // for targets 1.7.0 compat
+      id = MBEDTLS_SHA3_SHAKE256; break;
     default:
       id = MBEDTLS_SHA3_SHAKE256;
       Rf_error("'bits' must be 224, 256, 384 or 512");