/usr/share/common-lisp/source/ironclad/src/ is in cl-ironclad 0.32.1-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/common-lisp/source/ironclad/src/ciphers/
/usr/share/common-lisp/source/ironclad/src/ciphers/aes.lisp
/usr/share/common-lisp/source/ironclad/src/ciphers/arcfour.lisp
/usr/share/common-lisp/source/ironclad/src/ciphers/blowfish.lisp
/usr/share/common-lisp/source/ironclad/src/ciphers/cast5.lisp
/usr/share/common-lisp/source/ironclad/src/ciphers/cipher.lisp
/usr/share/common-lisp/source/ironclad/src/ciphers/des.lisp
/usr/share/common-lisp/source/ironclad/src/ciphers/idea.lisp
/usr/share/common-lisp/source/ironclad/src/ciphers/make-cipher.lisp
/usr/share/common-lisp/source/ironclad/src/ciphers/misty1.lisp
/usr/share/common-lisp/source/ironclad/src/ciphers/modes.lisp
/usr/share/common-lisp/source/ironclad/src/ciphers/null-cipher.lisp
/usr/share/common-lisp/source/ironclad/src/ciphers/rc2.lisp
/usr/share/common-lisp/source/ironclad/src/ciphers/rc5.lisp
/usr/share/common-lisp/source/ironclad/src/ciphers/rc6.lisp
/usr/share/common-lisp/source/ironclad/src/ciphers/square.lisp
/usr/share/common-lisp/source/ironclad/src/ciphers/tea.lisp
/usr/share/common-lisp/source/ironclad/src/ciphers/twofish.lisp
/usr/share/common-lisp/source/ironclad/src/ciphers/xtea.lisp
/usr/share/common-lisp/source/ironclad/src/common.lisp
/usr/share/common-lisp/source/ironclad/src/conditions.lisp
/usr/share/common-lisp/source/ironclad/src/digests/
/usr/share/common-lisp/source/ironclad/src/digests/adler32.lisp
/usr/share/common-lisp/source/ironclad/src/digests/crc24.lisp
/usr/share/common-lisp/source/ironclad/src/digests/crc32.lisp
/usr/share/common-lisp/source/ironclad/src/digests/digest.lisp
/usr/share/common-lisp/source/ironclad/src/digests/md2.lisp
/usr/share/common-lisp/source/ironclad/src/digests/md4.lisp
/usr/share/common-lisp/source/ironclad/src/digests/md5-lispworks-int32.lisp
/usr/share/common-lisp/source/ironclad/src/digests/md5.lisp
/usr/share/common-lisp/source/ironclad/src/digests/ripemd-128.lisp
/usr/share/common-lisp/source/ironclad/src/digests/ripemd-160.lisp
/usr/share/common-lisp/source/ironclad/src/digests/sha1.lisp
/usr/share/common-lisp/source/ironclad/src/digests/sha256.lisp
/usr/share/common-lisp/source/ironclad/src/digests/sha512.lisp
/usr/share/common-lisp/source/ironclad/src/digests/tiger.lisp
/usr/share/common-lisp/source/ironclad/src/digests/tree-hash.lisp
/usr/share/common-lisp/source/ironclad/src/digests/whirlpool.lisp
/usr/share/common-lisp/source/ironclad/src/kdf-common.lisp
/usr/share/common-lisp/source/ironclad/src/macro-utils.lisp
/usr/share/common-lisp/source/ironclad/src/macs/
/usr/share/common-lisp/source/ironclad/src/macs/cmac.lisp
/usr/share/common-lisp/source/ironclad/src/macs/hmac.lisp
/usr/share/common-lisp/source/ironclad/src/math.lisp
/usr/share/common-lisp/source/ironclad/src/octet-stream.lisp
/usr/share/common-lisp/source/ironclad/src/package.lisp
/usr/share/common-lisp/source/ironclad/src/padding.lisp
/usr/share/common-lisp/source/ironclad/src/password-hash.lisp
/usr/share/common-lisp/source/ironclad/src/pkcs5.lisp
/usr/share/common-lisp/source/ironclad/src/prng/
/usr/share/common-lisp/source/ironclad/src/prng/fortuna.lisp
/usr/share/common-lisp/source/ironclad/src/prng/generator.lisp
/usr/share/common-lisp/source/ironclad/src/prng/prng.lisp
/usr/share/common-lisp/source/ironclad/src/public-key/
/usr/share/common-lisp/source/ironclad/src/public-key/dsa.lisp
/usr/share/common-lisp/source/ironclad/src/public-key/public-key.lisp
/usr/share/common-lisp/source/ironclad/src/public-key/rsa.lisp
/usr/share/common-lisp/source/ironclad/src/sbcl-opt/
/usr/share/common-lisp/source/ironclad/src/sbcl-opt/fndb.lisp
/usr/share/common-lisp/source/ironclad/src/sbcl-opt/x86oid-vm.lisp
/usr/share/common-lisp/source/ironclad/src/scrypt.lisp
/usr/share/common-lisp/source/ironclad/src/util.lisp