Crypto CBC module doesn't show up in /proc/crypto

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I want to decrypt an old volume that's using aes-cbc-plain



So I am on arch linux kernel 4.9.130 I enabled the cbc as modular in the kernel and installed the modules and the kernel. CBC shows up in /lib/modules/4.9.130/kernel/crypto as cbc.ko.xz



I can perform modprobe cbc fine without errors and lsmod confirms cbc is loaded.



When I check /proc/crypto | grep cbc it is missing.



Is there a place where I can check for errors during the loading of the cbc module?










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  • anything in dmesg?
    – sebasth
    Oct 4 at 18:51










  • dmesg shows nothing in relation to the matter. I cross referenced with a mint that had cbc inbuilt and checked the kernel configuration. My deduction is there is a dependency. I just enabled every option except experimentals in the cryptography sub menu. That didn't yield me aes(cbc) either so I went ahead and copied the kernel build config of the working system to this one. I then used 'make localmodconfig' to try trim down compilation time and finally got what I wanted. cbc(aes) in the /proc/crypto. I'll add my .config as a pastebin: pastebin.com/ddQmrMCy
    – Cookie
    2 days ago














up vote
1
down vote

favorite












I want to decrypt an old volume that's using aes-cbc-plain



So I am on arch linux kernel 4.9.130 I enabled the cbc as modular in the kernel and installed the modules and the kernel. CBC shows up in /lib/modules/4.9.130/kernel/crypto as cbc.ko.xz



I can perform modprobe cbc fine without errors and lsmod confirms cbc is loaded.



When I check /proc/crypto | grep cbc it is missing.



Is there a place where I can check for errors during the loading of the cbc module?










share|improve this question























  • anything in dmesg?
    – sebasth
    Oct 4 at 18:51










  • dmesg shows nothing in relation to the matter. I cross referenced with a mint that had cbc inbuilt and checked the kernel configuration. My deduction is there is a dependency. I just enabled every option except experimentals in the cryptography sub menu. That didn't yield me aes(cbc) either so I went ahead and copied the kernel build config of the working system to this one. I then used 'make localmodconfig' to try trim down compilation time and finally got what I wanted. cbc(aes) in the /proc/crypto. I'll add my .config as a pastebin: pastebin.com/ddQmrMCy
    – Cookie
    2 days ago












up vote
1
down vote

favorite









up vote
1
down vote

favorite











I want to decrypt an old volume that's using aes-cbc-plain



So I am on arch linux kernel 4.9.130 I enabled the cbc as modular in the kernel and installed the modules and the kernel. CBC shows up in /lib/modules/4.9.130/kernel/crypto as cbc.ko.xz



I can perform modprobe cbc fine without errors and lsmod confirms cbc is loaded.



When I check /proc/crypto | grep cbc it is missing.



Is there a place where I can check for errors during the loading of the cbc module?










share|improve this question















I want to decrypt an old volume that's using aes-cbc-plain



So I am on arch linux kernel 4.9.130 I enabled the cbc as modular in the kernel and installed the modules and the kernel. CBC shows up in /lib/modules/4.9.130/kernel/crypto as cbc.ko.xz



I can perform modprobe cbc fine without errors and lsmod confirms cbc is loaded.



When I check /proc/crypto | grep cbc it is missing.



Is there a place where I can check for errors during the loading of the cbc module?







kernel kernel-modules






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Oct 4 at 18:21









jasonwryan

47.7k14131180




47.7k14131180










asked Oct 4 at 11:28









Cookie

62




62











  • anything in dmesg?
    – sebasth
    Oct 4 at 18:51










  • dmesg shows nothing in relation to the matter. I cross referenced with a mint that had cbc inbuilt and checked the kernel configuration. My deduction is there is a dependency. I just enabled every option except experimentals in the cryptography sub menu. That didn't yield me aes(cbc) either so I went ahead and copied the kernel build config of the working system to this one. I then used 'make localmodconfig' to try trim down compilation time and finally got what I wanted. cbc(aes) in the /proc/crypto. I'll add my .config as a pastebin: pastebin.com/ddQmrMCy
    – Cookie
    2 days ago
















  • anything in dmesg?
    – sebasth
    Oct 4 at 18:51










  • dmesg shows nothing in relation to the matter. I cross referenced with a mint that had cbc inbuilt and checked the kernel configuration. My deduction is there is a dependency. I just enabled every option except experimentals in the cryptography sub menu. That didn't yield me aes(cbc) either so I went ahead and copied the kernel build config of the working system to this one. I then used 'make localmodconfig' to try trim down compilation time and finally got what I wanted. cbc(aes) in the /proc/crypto. I'll add my .config as a pastebin: pastebin.com/ddQmrMCy
    – Cookie
    2 days ago















anything in dmesg?
– sebasth
Oct 4 at 18:51




anything in dmesg?
– sebasth
Oct 4 at 18:51












dmesg shows nothing in relation to the matter. I cross referenced with a mint that had cbc inbuilt and checked the kernel configuration. My deduction is there is a dependency. I just enabled every option except experimentals in the cryptography sub menu. That didn't yield me aes(cbc) either so I went ahead and copied the kernel build config of the working system to this one. I then used 'make localmodconfig' to try trim down compilation time and finally got what I wanted. cbc(aes) in the /proc/crypto. I'll add my .config as a pastebin: pastebin.com/ddQmrMCy
– Cookie
2 days ago




dmesg shows nothing in relation to the matter. I cross referenced with a mint that had cbc inbuilt and checked the kernel configuration. My deduction is there is a dependency. I just enabled every option except experimentals in the cryptography sub menu. That didn't yield me aes(cbc) either so I went ahead and copied the kernel build config of the working system to this one. I then used 'make localmodconfig' to try trim down compilation time and finally got what I wanted. cbc(aes) in the /proc/crypto. I'll add my .config as a pastebin: pastebin.com/ddQmrMCy
– Cookie
2 days ago















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