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Diffstat (limited to 'ubuntu/scripts/openssl-bsaes.sh')
| -rwxr-xr-x | ubuntu/scripts/openssl-bsaes.sh | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/ubuntu/scripts/openssl-bsaes.sh b/ubuntu/scripts/openssl-bsaes.sh new file mode 100755 index 0000000..b01224c --- /dev/null +++ b/ubuntu/scripts/openssl-bsaes.sh @@ -0,0 +1,51 @@ +#!/bin/bash + +## +## openssl-bsaes.sh - test the NEON bit sliced AES implementation +## in various sizes and modes +## +## 2013-07-09 Ard Biesheuvel <ard.biesheuvel@linaro.org> +## + +set -u + +BITS=$1 +MODE=$2 + +exec 2> /dev/null + +KEY=$(dd if=/dev/urandom bs=32 count=1 | hexdump -ve '/1 "%02x"') +ALG=aes-$BITS-$MODE +NAME=neon-$ALG + +# ctr mode is essentially a stream cipher, so instead of using it for both +# encrypt and decrypt (which both call encrypt() under the hood), disable NEON +# for the decrypt case by setting OPENSSL_armcap to zero in the environment +if [ "$MODE" == "ctr" ] +then + ARMCAP="env OPENSSL_armcap=0" +fi + +TMP=/tmp/bsaestest-$$.md5sum + +export KEY +export ARMCAP + +for i in $(seq 100) +do + OUT=$(dd if=/dev/urandom bs=16k count=1 | + tee >(md5sum >$TMP) | + openssl enc -$ALG -pass env:KEY | + ${ARMCAP:-} openssl enc -d -$ALG -pass env:KEY | + md5sum) + + if [ "$OUT" != "$(cat $TMP)" ] + then + echo ${NAME}: fail + rm -f $TMP + exit 1 + fi +done + +rm -f $TMP +echo ${NAME}: pass |