diff --git a/dev-libs/botan/Manifest b/dev-libs/botan/Manifest
index 8f6761a393d70..5509e2815c24c 100644
--- a/dev-libs/botan/Manifest
+++ b/dev-libs/botan/Manifest
@@ -1,2 +1,3 @@
 DIST Botan-2.17.3.tar.xz 5937596 BLAKE2B 605e71c959889b459bc26f17d310a33f26c9a51fe00db91db407ac5b96c9ff57bef67a401f71826e83e0d4eda2289c22685957289e6bb357f3693a1bce60f44d SHA512 ead0f144dfb9eca66d0e81e376d0d49f4b0b6bc1599f8cf52299e1753645b5b20100efa004ef5f9571f7bea88958f35db38367fc26f2603890f8f199cc890dbc
 DIST Botan-2.18.0.tar.xz 5941536 BLAKE2B 2a4182bab5e681fdfeafa113462bf5a31057d7be97d71d0a6e60975b84432dd3932498f42f0b879e216727df4bbfcbf0d844e971df95eaf9cf922280f32858b4 SHA512 8613412e3e2fe8b787db7a4d4dbadf60b8fe6b68a84408c600c37cd0b5dbdf3f347a49f5bd88eb8d4f658e927a8b976884146551bf7d256fa80e9675297c0f09
+DIST Botan-2.18.0.tar.xz.asc 488 BLAKE2B b9a9c98e11eae227fb900cae2dca3aecc2114ecacd87336cf5cdbe6fbcb9676514f11e365e94dbfecf3b9edc1a9a3398ff2c66f34a77d7b4d6b0f87518af6d9a SHA512 f2e1689e10b0706eed5a3cf08dfcb163874d3ada12968ac739eeff259ae81b1329fafdae4d29290195276fe3bb1cdeaf3f302b8df53a377c5bbdb7964deaa044
diff --git a/dev-libs/botan/botan-2.18.0.ebuild b/dev-libs/botan/botan-2.18.0.ebuild
index ab5000d8a85ee..4d9fc251745dd 100644
--- a/dev-libs/botan/botan-2.18.0.ebuild
+++ b/dev-libs/botan/botan-2.18.0.ebuild
@@ -4,12 +4,14 @@
 EAPI=7
 
 PYTHON_COMPAT=( python3_{7,8,9} )
-inherit python-r1 toolchain-funcs
+VERIFY_SIG_OPENPGP_KEY_PATH="/usr/share/openpgp-keys/botan.asc"
+inherit python-r1 toolchain-funcs verify-sig
 
 MY_P="Botan-${PV}"
 DESCRIPTION="C++ crypto library"
 HOMEPAGE="https://botan.randombit.net/"
 SRC_URI="https://botan.randombit.net/releases/${MY_P}.tar.xz"
+SRC_URI+=" verify-sig? ( https://botan.randombit.net/releases/${MY_P}.tar.xz.asc )"
 S="${WORKDIR}/${MY_P}"
 
 LICENSE="BSD-2"
@@ -43,6 +45,7 @@ BDEPEND="
 	$(python_gen_any_dep '
 		doc? ( dev-python/sphinx[${PYTHON_USEDEP}] )
 	')
+	verify-sig? ( app-crypt/openpgp-keys-botan )
 "
 
 # NOTE: Considering patching Botan?