feat(server): add X25519 ECDH for secure unseal protocol

server/Cargo.lock

@@ -101,6 +101,7 @@ dependencies = [
  "tokio-stream",
  "tonic",
  "tracing",
+ "x25519-dalek",
  "zeroize",
 ]
 
@@ -487,6 +488,21 @@ dependencies = [
  "hybrid-array",
 ]
 
+[[package]]
+name = "curve25519-dalek"
+version = "4.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97fb8b7c4503de7d6ae7b42ab72a5a59857b4c937ec27a3d4539dba95b5ab2be"
+dependencies = [
+ "cfg-if",
+ "cpufeatures 0.2.17",
+ "curve25519-dalek-derive",
+ "fiat-crypto 0.2.9",
+ "rustc_version",
+ "subtle",
+ "zeroize",
+]
+
 [[package]]
 name = "curve25519-dalek"
 version = "5.0.0-pre.6"
@@ -497,7 +513,7 @@ dependencies = [
  "cpufeatures 0.2.17",
  "curve25519-dalek-derive",
  "digest 0.11.0",
- "fiat-crypto",
+ "fiat-crypto 0.3.0",
  "rustc_version",
  "subtle",
  "zeroize",
@@ -735,7 +751,7 @@ version = "3.0.0-pre.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "053618a4c3d3bc24f188aa660ae75a46eeab74ef07fb415c61431e5e7cd4749b"
 dependencies = [
- "curve25519-dalek",
+ "curve25519-dalek 5.0.0-pre.6",
  "ed25519",
  "rand_core 0.10.0",
  "sha2",
@@ -771,6 +787,12 @@ version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "37909eebbb50d72f9059c3b6d82c0463f2ff062c9e95845c43a6c9c0355411be"
 
+[[package]]
+name = "fiat-crypto"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28dea519a9695b9977216879a3ebfddf92f1c08c05d984f8996aecd6ecdc811d"
+
 [[package]]
 name = "fiat-crypto"
 version = "0.3.0"
@@ -3071,6 +3093,18 @@ dependencies = [
  "wasmparser",
 ]
 
+[[package]]
+name = "x25519-dalek"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7e468321c81fb07fa7f4c636c3972b9100f0346e5b6a9f2bd0603a52f7ed277"
+dependencies = [
+ "curve25519-dalek 4.1.3",
+ "rand_core 0.6.4",
+ "serde",
+ "zeroize",
+]
+
 [[package]]
 name = "x509-parser"
 version = "0.18.1"
@@ -3103,6 +3137,20 @@ name = "zeroize"
 version = "1.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b97154e67e32c85465826e8bcc1c59429aaaf107c1e4a9e53c8d8ccd5eff88d0"
+dependencies = [
+ "zeroize_derive",
+]
+
+[[package]]
+name = "zeroize_derive"
+version = "1.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85a5b4158499876c763cb03bc4e49185d3cccbabb15b33c627f7884f43db852e"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.116",
+]
 
 [[package]]
 name = "zmij"