Canonical way to sign (and verify) an ELF file? - Stack Overflow
Note: we can limit the scope of the question to Linux even though ELF isn't particular to Linux. Even if there is no ready to use program and/or library under a liberal (non-copyleft) FLOSS license, I would appreciate pointers to standardization documents in case some kind of de-facto standard has emerged.
security - Signed executables under Linux - Stack Overflow
2009年11月14日 · I realize this is an ancient question but I just now found it. I wrote signed executable support for the Linux kernel (around version 2.4.3) a while back, and had the entire toolchain in place for signing executables, checking the signatures at execve(2) time, caching the signature validation information (clearing the validation when the file was opened for writing or …
ELF Header Magic - Why was 0x7F put in it? - Stack Overflow
2019年1月10日 · ELF on the other hand started in 1995, that you can see from the early drafts for version 1.0 of the format reference, later being adopted in 1999 as standard for Unix. The majority of file signature are 4 bytes, followed by 2, followed by an even number of bytes. 0x37F does not fit in one byte, since they already had 3 (ELF). –
How can I sign the executable file and verify its integrity, using ELF ...
2023年5月13日 · With the C code, Makefile, appropriate private & public RSA key generated by the method I've introduced earlier, and a ELF executable file, I expected the result like this: For the signing, a signed ELF executable file will be given to me. and as for the verifying, with the right signed ELF executable file, "OK" will be printed.
What is the difference between ELF files and bin files?
2017年11月13日 · 0x7C00 sounds like a bootloader thing which doesnt use elf necessarily. this is a generic question. an operating system would have rules for the (virtual) address spaces, the toolchain would need to be targetted at that operating systems rules, then the file format would indicate loadable items with addresses plus an entry point once loaded, plus other things.
Does Linux validate ELF signatures? - Stack Overflow
2018年8月15日 · I see that ELF binaries can be signed. Can Linux Kernel enforce validation of ELF signinatures for kernel modules and user mode binaries?
Is there an ELF equivelant of PE Original Filename
2022年7月7日 · You can then sign the ELF with elfsign which by default covers the ELF sections. This is a PKI system, so you then need a chain of trust to verify that signature. Windows is probably using a CA rooted at Microsoft for their Authenticode mechanism and hence can tell you if a PE has a valid signature (valid here means "with a key signed by ...
linux - ELF file headers - Stack Overflow
A quick question about elf file headers, I can't seem to find anything useful on how to add/change fields in the elf header. I'd like to be able to change the magic numbers and to add a build date to the header, and probably a few other things.
embedded - Elf representation in HEX - Stack Overflow
2017年9月6日 · My question is similar to understand hexedit of an elf. In order to burn compiler output to ROM, the .out file is converted to HEX (say intel-hex). I wonder how the following informations are preserved in HEX format: Section header; Symbol tables, debug symbols, linker symbols etc. Elf header.
Mac M1 chip issues with rosetta, “attachment of code signature ...
2021年7月1日 · One of the following will fix the issue IMHO. Restart Mac OS. Upgrade OS (will restart after the upgrade) Upgrade Docker, Upgrade OS, restart.