Specify MD5 as the digest to create a key from the passphrase. (backwards compatibility)

Author: damaestro

transcrypt

@@ -284,7 +284,7 @@ save_helper_scripts() {
 		    cipher=$(git config --get --local transcrypt.cipher)
 		    password=$(git config --get --local transcrypt.password)
 		    salt=$(openssl dgst -hmac "${filename}:${password}" -sha256 "$filename" | tail -c 16)
-		    ENC_PASS=$password openssl enc -$cipher -pass env:ENC_PASS -e -a -S "$salt" -in "$tempfile"
+		    ENC_PASS=$password openssl enc -$cipher -md MD5 -pass env:ENC_PASS -e -a -S "$salt" -in "$tempfile"
 		  fi
 		fi
 	EOF
@@ -295,7 +295,7 @@ save_helper_scripts() {
 		trap 'rm -f "$tempfile"' EXIT
 		cipher=$(git config --get --local transcrypt.cipher)
 		password=$(git config --get --local transcrypt.password)
-		tee "$tempfile" | ENC_PASS=$password openssl enc -$cipher -pass env:ENC_PASS -d -a 2> /dev/null || cat "$tempfile"
+		tee "$tempfile" | ENC_PASS=$password openssl enc -$cipher -md MD5 -pass env:ENC_PASS -d -a 2> /dev/null || cat "$tempfile"
 	EOF
 
 	cat <<-'EOF' > "${GIT_DIR}/crypt/textconv"
@@ -305,7 +305,7 @@ save_helper_scripts() {
 		if [[ -s $filename ]]; then
 		  cipher=$(git config --get --local transcrypt.cipher)
 		  password=$(git config --get --local transcrypt.password)
-		  ENC_PASS=$password openssl enc -$cipher -pass env:ENC_PASS -d -a -in "$filename" 2> /dev/null || cat "$filename"
+		  ENC_PASS=$password openssl enc -$cipher -md MD5 -pass env:ENC_PASS -d -a -in "$filename" 2> /dev/null || cat "$filename"
 		fi
 	EOF