Fix testing with crypto primitives. (#226)

Author: abizjak

concordium-std/CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## Unreleased changes
 
+- Fix testing of crypto primitives using secp256k1 signature scheme.
+
 ## concordium-std 6.0.0 (2023-02-08)
 
 - [`wee_alloc`](https://docs.rs/wee_alloc/latest/wee_alloc/index.html) is no

concordium-std/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "concordium-std"
-version = "6.0.0"
+version = "6.0.1"
 authors = ["Concordium <[email protected]>"]
 edition = "2018"
 license = "MPL-2.0"
@@ -15,7 +15,7 @@ readme = "./README.md"
 wee_alloc= { version = "0.4.5", optional = true}
 sha2 = { version = "0.10", optional = true }
 sha3 = { version = "0.10", optional = true }
-secp256k1 = { version = "0.22", optional = true }
+secp256k1 = { version = "0.22", optional = true, features = ["lowmemory"] }
 ed25519-zebra = { version = "2.2", optional = true }
 quickcheck = {version = "1", optional = true }
 getrandom = { version = "0.2", features = ["custom"], optional = true }