US EditionConstant-time support lands in LLVM: Protecting cryptographic code at the compiler level
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Constant-time support lands in LLVM: Protecting cryptographic code at the compiler level
Trail of Bits has developed constant-time coding support for LLVM 21, providing developers with compiler-level guarantees that their cryptographic implementations remain secure against branching-related timing attacks. This work introduces the __builtin_ct_select family of intrinsics and supporting infrastructure that prevents the Clang compiler, and potentially other compilers built with LLVM, from inadvertently breaking carefully crafted const…
Constant-time support lands in LLVM: Protecting cryptographic code at the compiler level
Trail of Bits has developed constant-time coding support for LLVM 21, providing developers with compiler-level guarantees that their cryptographic implementations remain secure against branching-related timing attacks. This work introduces the __builtin_ct_select family of intrinsics and supporting infrastructure that prevents the Clang compiler, and potentially other compilers built with LLVM, from inadvertently breaking carefully crafted const…
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