CryptoAPI on 2.6.5 problem

gentoo_server · n00b Joined: 12 Jun 2004 Posts: 5

Hello!

I've compiled CryptoAPI in kernel 2.6.5-gentoo-r1, but when I try to run "modprobe sha1" or "modprobe arc4" or something similar I got an error:
FATAL: Error inserting sha1 (/lib/modules/2.6.5-gentoo-r1/kernel/crypto/sha1.ko): Unknown symbol in module, or unknown parameter (see dmesg)

dmesg says:
"sha1: Unknown symbol crypto_unregister_alg
sha1: Unknown symbol crypto_register_alg"

Please help me how to fix it. Thank you.

drakos7 · Posted: Tue Aug 24, 2004 4:20 pm Post subject:

Same problem here for kernel 2.6.7 (gentoo-dev-sources-r13) when trying to probe arc4. I wonder if I need to reboot to have it work.... Shouldn't of course.

wmgoree · Posted: Fri Mar 04, 2005 3:22 am Post subject: You didn't enable crypto

In one of the weirder decisions of kernel configuration, you are able to compile the crypto algorithm modules without enabling the crypto api (the part of the kernel that knows how to register a crypto algorithm). So, you have perfectly good modules but your kernel doesn't know what to do with them, hence the unknown symbol complaint.

Unfortunately, you can't load the crypto api as a module in 2.6 (to my knowledge). You need to recompile your kernel and make sure that CONFIG_CRYPT is set to "Y" -- and be careful: some of the config programs (particularly gconfig) have problems letting you select it.
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[Lx]-=Mystify=- · Apprentice Joined: 16 Mar 2004 Posts: 180

hm that's strange...

i can't load aes-i586 or serpent with the same failures, while crypto api is configured in my kernel[code]#
# Cryptographic options
#
CONFIG_CRYPTO=y
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_WP512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_TWOFISH is not set
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_AES_586=m
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
CONFIG_CRYPTO_CRC32C=m
# CONFIG_CRYPTO_TEST is not set
[/quote]

the only thing that loads fine is the libcrc32c module...

any suggestions???
and as alwas (in companies) it should work since yesterday :roll:

the strange thing about it that /proc/crypto does not exist...

maybe i done a failure while setting up (haven't started the new kernel or such things).
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IT'S THE ABSENCE OF LIGHT

[Lx]-=Mystify=- · Apprentice Joined: 16 Mar 2004 Posts: 180

ok, all the sys admin fault...

selecting the dm-crypt modules in kernel tree automatically selected the crypto api, but i wasn't aware that i have to boot the new kernel...

now everything works fine...
_________________
DARK IS NOT THE OPPISITE OF LIGHT
IT'S THE ABSENCE OF LIGHT