/usr/include/cyassl/ctaocrypt/ is in libwolfssl-dev 3.4.8+dfsg-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/cyassl/ctaocrypt/aes.h
/usr/include/cyassl/ctaocrypt/arc4.h
/usr/include/cyassl/ctaocrypt/asn.h
/usr/include/cyassl/ctaocrypt/asn_public.h
/usr/include/cyassl/ctaocrypt/blake2-impl.h
/usr/include/cyassl/ctaocrypt/blake2-int.h
/usr/include/cyassl/ctaocrypt/blake2.h
/usr/include/cyassl/ctaocrypt/camellia.h
/usr/include/cyassl/ctaocrypt/chacha.h
/usr/include/cyassl/ctaocrypt/coding.h
/usr/include/cyassl/ctaocrypt/compress.h
/usr/include/cyassl/ctaocrypt/des3.h
/usr/include/cyassl/ctaocrypt/dh.h
/usr/include/cyassl/ctaocrypt/dsa.h
/usr/include/cyassl/ctaocrypt/ecc.h
/usr/include/cyassl/ctaocrypt/error-crypt.h
/usr/include/cyassl/ctaocrypt/fips_test.h
/usr/include/cyassl/ctaocrypt/hc128.h
/usr/include/cyassl/ctaocrypt/hmac.h
/usr/include/cyassl/ctaocrypt/integer.h
/usr/include/cyassl/ctaocrypt/logging.h
/usr/include/cyassl/ctaocrypt/md2.h
/usr/include/cyassl/ctaocrypt/md4.h
/usr/include/cyassl/ctaocrypt/md5.h
/usr/include/cyassl/ctaocrypt/memory.h
/usr/include/cyassl/ctaocrypt/misc.h
/usr/include/cyassl/ctaocrypt/mpi_class.h
/usr/include/cyassl/ctaocrypt/mpi_superclass.h
/usr/include/cyassl/ctaocrypt/pkcs7.h
/usr/include/cyassl/ctaocrypt/poly1305.h
/usr/include/cyassl/ctaocrypt/pwdbased.h
/usr/include/cyassl/ctaocrypt/rabbit.h
/usr/include/cyassl/ctaocrypt/random.h
/usr/include/cyassl/ctaocrypt/ripemd.h
/usr/include/cyassl/ctaocrypt/rsa.h
/usr/include/cyassl/ctaocrypt/settings.h
/usr/include/cyassl/ctaocrypt/settings_comp.h
/usr/include/cyassl/ctaocrypt/sha.h
/usr/include/cyassl/ctaocrypt/sha256.h
/usr/include/cyassl/ctaocrypt/sha512.h
/usr/include/cyassl/ctaocrypt/tfm.h
/usr/include/cyassl/ctaocrypt/types.h
/usr/include/cyassl/ctaocrypt/visibility.h
/usr/include/cyassl/ctaocrypt/wc_port.h