gost_engine: add CI test

Thi adds one MD and one cipher test from upstream, adapted to a shell
script.

Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>

diff --git a/libs/gost_engine/test.sh b/libs/gost_engine/test.sh
new file mode 100644 (file)
index 0000000..b2cef4b
--- /dev/null
+++ b/libs/gost_engine/test.sh
@@ -0,0 +1,80 @@
+#!/bin/sh
+# shellcheck disable=SC2059
+
+run_md_test () {
+       [ $# -ge 3 ] || {
+               echo "Error: insufficient args to run_md_test()" >&2
+               exit 1
+       }
+       DGST="$1";  shift
+       INP="$1"; shift
+       EXP="$1"; shift
+       printf "Testing digest %s: " "$DGST" >&2
+       OUT="$(printf "$INP" | openssl dgst -"$DGST" "$@")" || exit 1
+       [ -z "${OUT%%*"$EXP"}" ] || {
+               printf "Failure: expected: '%s', got '%s'\n" "$EXP" "$OUT" >&2
+               exit 1
+       }
+       echo OK >&2 || true
+}
+
+run_cipher_test() {
+       [ $# -ge 5 ] || {
+               echo "Error: insufficient args to run_cipher_test()" >&2
+               exit 1
+       }
+       ALG="$1"; shift
+       KEY="$1"; shift
+       IV="$1"; shift
+       CLEAR_TEXT="$1"; shift
+       CIPHER_TEXT="$1"; shift
+       printf "Testing %s encryption: " "$ALG" >&2
+       OUT="$(printf "$CLEAR_TEXT" | openssl enc -e -"$ALG" -K "$KEY" -iv "$IV" "$@" -a -A)" || exit 1
+       [ -z "${OUT%"$CIPHER_TEXT"}" ] || {
+               printf "Encryption failure: expected: '%s', got '%s'\n" "$CIPHER_TEXT" "$OUT" >&2
+               exit 1
+       }
+       echo OK >&2
+       printf "Testing %s decryption: " "$ALG" >&2
+       OUT="$(printf "$CIPHER_TEXT" | openssl enc -d -"$ALG" -K "$KEY" -iv "$IV" "$@" -a -A)" || exit 1
+       [ -z "${OUT%"$(printf "$CLEAR_TEXT")"}" ] || {
+               echo "Decryption failure!" >&2
+               echo "----------- expected hexdump -------------" >&2
+               printf "$CLEAR_TEXT" | hexdump -C
+               echo "------------ result hexdump --------------" >&2
+               echo "$OUT" | hexdump -C >&2
+               exit 1
+       }
+       echo OK >&2 || true
+}
+
+case "$1" in
+       libopenssl-gost_engine)
+               opkg install openssl-util
+               run_md_test \
+                       md_gost12_256 \
+                       012345678901234567890123456789012345678901234567890123456789012 \
+                       9d151eefd8590b89daa6ba6cb74af9275dd051026bb149a452fd84e5e57b5500
+               export CRYPT_PARAMS="1.2.643.2.2.31.1"
+               run_cipher_test \
+                       gost89 \
+                       0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF \
+                       0000000000000000 \
+                       "The quick brown fox jumps over the lazy dog\n" \
+                       "B/QQLGGFxKCeZ24mm/pLycXfZXWRa4eb0TqJOiKF7maQEHze73oxXS61S/o="
+               ;;
+       gost_engine-util)
+               printf "Testing gost12sum: "
+               EXP=9d151eefd8590b89daa6ba6cb74af9275dd051026bb149a452fd84e5e57b5500
+               OUT=$(printf 012345678901234567890123456789012345678901234567890123456789012 | gost12sum)
+               [ -z "${OUT##"$EXP"*}" ] || {
+                       printf "Failure: expected: '%s', got '%s'\n" "$EXP" "$OUT" >&2
+                       exit 1
+               }
+               echo OK >&2 || true
+               ;;
+       *)
+               echo "Unexpected package '$1'" >&2
+               exit 1
+               ;;
+esac