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<required>
# block
aes
# modes
ccm
gcm
cbc
mode_pad
# stream
ctr
# hash
sha2_32
sha2_64
sha3
# mac
cmac
hmac
gmac
# kdf
kdf1_iso18033
sp800_108
sp800_56c
# pk_pad
eme_oaep
emsa_pssr
emsa1
iso9796
# pubkey
dlies
dh
rsa
dsa
ecdsa
ecgdsa
ecies
eckcdsa
ecdh
xmss
# rng
auto_rng
hmac_drbg
</required>
<if_available>
# block
aes_ni
aes_vperm
aes_armv8
aes_power8
# modes
ghash_cpu
ghash_vperm
# hash
sha2_32_x86
sha2_32_armv8
sha2_32_bmi2
sha2_64_bmi2
sha3_bmi2
# entropy sources
dev_random
proc_walk
rdseed
win32_stats
# rng
processor_rng
system_rng
# utils
http_util # needed by x509 for OCSP online checks
locking_allocator
simd
</if_available>
<prohibited>
# block
aria
blowfish
camellia
cascade
cast128
cast256
des
gost_28147
idea
idea_sse2
kasumi
lion
misty1
noekeon
noekeon_simd
seed
serpent
serpent_simd
serpent_avx2
shacal2
shacal2_x86
shacal2_simd
sm4
threefish_512
threefish_512_avx2
twofish
xtea
# modes
chacha20poly1305
eax
ocb
siv
cfb
# stream
chacha
chacha_simd32
chacha_avx2
ofb
rc4
salsa20
shake_cipher
# kdf
hkdf
kdf1
kdf2
prf_x942
sp800_56a
# pubkey
cecpq1
curve25519
ed25519
elgamal
gost_3410
mce
mceies
rfc6979
newhope
sm2
# pk_pad
#eme_pkcs1 // needed for tls
#emsa_pkcs1 // needed for tls
emsa_raw
emsa_x931
# hash
blake2
comb4p
gost_3411
md4
md5
rmd160
shake
skein
#sha1 // needed for x509
sm3
streebog
tiger
whirlpool
keccak
# rng
chacha_rng
# mac
cbc_mac
poly1305
siphash
x919_mac
# misc
bcrypt
# tls
tls_10
</prohibited>