Update rust-secp256k1 to add ecdsa-adaptor/schnorr

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "secp256k1"
-version = "0.17.2"
+version = "0.17.3-adaptor.0"
 authors = [ "Dawid Ciężarkiewicz <[email protected]>",
             "Andrew Poelstra <[email protected]>" ]
 license = "CC0-1.0"
@@ -38,7 +38,7 @@ external-symbols = ["secp256k1-sys/external-symbols"]
 fuzztarget = ["secp256k1-sys/fuzztarget"]
 
 [dependencies]
-secp256k1-sys = { version = "0.1.1", default-features = false, path = "./secp256k1-sys" }
+secp256k1-sys = { version = "0.1.3-adaptor.0", default-features = false, path = "./secp256k1-sys" }
 
 [dev-dependencies]
 rand = "0.6"

src/constants.rs

@@ -34,6 +34,24 @@ pub const MAX_SIGNATURE_SIZE: usize = 72;
 /// The maximum size of a compact signature
 pub const COMPACT_SIGNATURE_SIZE: usize = 64;
 
+/// Size of an adaptor signature
+pub const ADAPTOR_SIGNATURE_SIZE: usize = 65;
+
+/// Size of an adaptor proof
+pub const ADAPTOR_PROOF_SIZE: usize = 97;
+
+/// Size of a schnorr signature
+pub const SCHNORR_SIGNATURE_SIZE: usize = 64;
+
+/// Size of a schnorr signature
+pub const SCHNORR_NONCE_SIZE: usize = 32;
+
+/// Size of a x-only public key
+pub const X_ONLY_PUBLIC_KEY_SIZE: usize = 64;
+
+/// Size of a key pair
+pub const KEY_PAIR_SIZE: usize = 96;
+
 /// The Prime for the secp256k1 field element.
 pub const FIELD_SIZE: [u8; 32] = [
     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,