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find_package(OpenSSL QUIET)
if(NOT OPENSSL_FOUND)
message(STATUS "Install OpenSSL version >= 3.0.0 to enable OpenSSL support")
unset(HAVE_OPENSSL_RNG)
unset(HAVE_OPENSSL CACHE)
return()
endif()
set(HAVE_OPENSSL_RNG TRUE)
if(OPENSSL_VERSION VERSION_LESS "3.0.0")
message(STATUS "Install version >= 3.0.0 to enable OpenSSL support "
"(found version \"${OPENSSL_VERSION}\")")
return()
endif()
set(DISABLE_OPENSSL FALSE CACHE BOOL "Disable OpenSSL support")
if(DISABLE_OPENSSL)
message(STATUS "OpenSSL support disabled")
unset(HAVE_OPENSSL CACHE)
return()
endif()
message(STATUS "OpenSSL support enabled, found version ${OPENSSL_VERSION}")
set(HAVE_OPENSSL TRUE CACHE INTERNAL
"OpenSSL cryptography support available")
if(OPENSSL_VERSION VERSION_GREATER_EQUAL "3.5.0")
set(DISABLE_ML FALSE CACHE BOOL
"Disable ML-KEM/ML-DSA support")
set(DISABLE_SLH FALSE CACHE BOOL
"Disable SLH-DSA support")
if(NOT DISABLE_ML)
set(HAVE_ML TRUE CACHE INTERNAL
"OpenSSL ML-KEM/ML-DSA available")
message(STATUS "OpenSSL ML-KEM/ML-DSA support enabled")
else()
message(STATUS "OpenSSL ML-KEM/ML-DSA support disabled")
unset(HAVE_ML CACHE)
endif()
if(NOT DISABLE_SLH)
set(HAVE_SLH TRUE CACHE INTERNAL
"OpenSSL SLH-DSA available")
message(STATUS "OpenSSL SLH-DSA support enabled")
else()
message(STATUS "OpenSSL SLH-DSA support disabled")
unset(HAVE_SLH CACHE)
endif()
else()
message(STATUS
"Install OpenSSL >= 3.5.0 for PQC (ML-KEM/ML-DSA/SLH-DSA)")
unset(HAVE_ML CACHE)
unset(HAVE_SLH CACHE)
endif()
# Secure memory options are in cmake/config/global.cmake
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