diff --git a/Cargo.lock b/Cargo.lock
index 2565907..793fcc6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,30 +4,30 @@ version = 3
 
 [[package]]
 name = "aead"
-version = "0.4.3"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b613b8e1e3cf911a086f53f03bf286f52fd7a7258e4fa606f0ef220d39d8877"
+checksum = "d122413f284cf2d62fb1b7db97e02edb8cda96d769b16e443a4f6195e35662b0"
 dependencies = [
+ "crypto-common",
  "generic-array",
 ]
 
 [[package]]
 name = "aes"
-version = "0.7.5"
+version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e8b47f52ea9bae42228d07ec09eb676433d7c4ed1ebdf0f1d1c29ed446f1ab8"
+checksum = "b169f7a6d4742236a0a00c541b845991d0ac43e546831af1249753ab4c3aa3a0"
 dependencies = [
  "cfg-if",
  "cipher",
  "cpufeatures",
- "opaque-debug",
 ]
 
 [[package]]
 name = "aes-gcm"
-version = "0.9.4"
+version = "0.10.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df5f85a83a7d8b0442b6aa7b504b8212c1733da07b98aae43d4bc21b2cb3cdf6"
+checksum = "831010a0f742e1209b3bcea8fab6a8e149051ba6099432c8cb2cc117dec3ead1"
 dependencies = [
  "aead",
  "aes",
@@ -45,15 +45,9 @@ checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
 [[package]]
 name = "base16ct"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "349a06037c7bf932dd7e7d1f653678b2038b9ad46a74102f1fc7bd7872678cce"
-
-[[package]]
-name = "base64ct"
-version = "1.5.3"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b645a089122eccb6111b4f81cbc1a49f5900ac4666bb93ac027feaecf15607bf"
+checksum = "4c7f02d4ea65f2c1853089ffd8d2787bdbc63de2f0d29dedbcf8ccdfa0ccd4cf"
 
 [[package]]
 name = "bitflags"
@@ -61,15 +55,6 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
-[[package]]
-name = "block-buffer"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4152116fd6e9dadb291ae18fc1ec3575ed6d84c29642d97890f4b4a3417297e4"
-dependencies = [
- "generic-array",
-]
-
 [[package]]
 name = "block-buffer"
 version = "0.10.3"
@@ -79,18 +64,6 @@ dependencies = [
  "generic-array",
 ]
 
-[[package]]
-name = "bumpalo"
-version = "3.12.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d261e256854913907f67ed06efbc3338dfe6179796deefc1ff763fc1aee5535"
-
-[[package]]
-name = "byteorder"
-version = "1.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
-
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
@@ -99,21 +72,20 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "chacha20"
-version = "0.8.2"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c80e5460aa66fe3b91d40bcbdab953a597b60053e34d684ac6903f863b680a6"
+checksum = "c3613f74bd2eac03dad61bd53dbe620703d4371614fe0bc3b9f04dd36fe4e818"
 dependencies = [
  "cfg-if",
  "cipher",
  "cpufeatures",
- "zeroize",
 ]
 
 [[package]]
 name = "chacha20poly1305"
-version = "0.9.1"
+version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a18446b09be63d457bbec447509e85f662f32952b035ce892290396bc0b0cff5"
+checksum = "10cd79432192d1c0f4e1a0fef9527696cc039165d729fb41b3f4f4f354c2dc35"
 dependencies = [
  "aead",
  "chacha20",
@@ -124,33 +96,35 @@ dependencies = [
 
 [[package]]
 name = "cipher"
-version = "0.3.0"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ee52072ec15386f770805afd189a01c8841be8696bed250fa2f13c4c0d6dfb7"
+checksum = "773f3b9af64447d2ce9850330c473515014aa235e6a783b02db81ff39e4a3dad"
 dependencies = [
- "generic-array",
+ "crypto-common",
+ "inout",
+ "zeroize",
 ]
 
 [[package]]
 name = "const-oid"
-version = "0.7.1"
+version = "0.9.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e4c78c047431fee22c1a7bb92e00ad095a02a983affe4d8a72e2a2c62c1b94f3"
+checksum = "c2459377285ad874054d797f3ccebf984978aa39129f6eafde5cdc8315b612f8"
 
 [[package]]
 name = "cpufeatures"
-version = "0.2.5"
+version = "0.2.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28d997bd5e24a5928dd43e46dc529867e207907fe0b239c3477d924f7f2ca320"
+checksum = "53fe5e26ff1b7aef8bca9c6080520cfb8d9333c7568e1829cef191a9723e5504"
 dependencies = [
  "libc",
 ]
 
 [[package]]
 name = "crypto-bigint"
-version = "0.3.2"
+version = "0.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03c6a1d5fa1de37e071642dfa44ec552ca5b299adb128fab16138e24b548fd21"
+checksum = "0dc92fb57ca44df6db8059111ab3af99a63d5d0f8375d9972e319a379c6bab76"
 dependencies = [
  "generic-array",
  "rand_core",
@@ -168,54 +142,50 @@ dependencies = [
  "typenum",
 ]
 
-[[package]]
-name = "crypto-mac"
-version = "0.11.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1d1a86f49236c215f271d40892d5fc950490551400b02ef360692c29815c714"
-dependencies = [
- "generic-array",
- "subtle",
-]
-
 [[package]]
 name = "ctr"
-version = "0.8.0"
+version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "049bb91fb4aaf0e3c7efa6cd5ef877dbbbd15b39dad06d9948de4ec8a75761ea"
+checksum = "0369ee1ad671834580515889b80f2ea915f23b8be8d0daa4bbaf2ac5c7590835"
 dependencies = [
  "cipher",
 ]
 
 [[package]]
-name = "curve25519-dalek-ng"
-version = "4.1.1"
+name = "curve25519-dalek"
+version = "4.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1c359b7249347e46fb28804470d071c921156ad62b3eef5d34e2ba867533dec8"
+checksum = "0a677b8922c94e01bdbb12126b0bc852f00447528dee1782229af9c720c3f348"
 dependencies = [
- "byteorder",
- "digest 0.9.0",
- "rand_core",
- "subtle-ng",
+ "cfg-if",
+ "cpufeatures",
+ "curve25519-dalek-derive",
+ "fiat-crypto",
+ "platforms",
+ "rustc_version",
+ "subtle",
  "zeroize",
 ]
 
 [[package]]
-name = "der"
-version = "0.5.1"
+name = "curve25519-dalek-derive"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6919815d73839e7ad218de758883aae3a257ba6759ce7a9992501efbb53d705c"
+checksum = "f46882e17999c6cc590af592290432be3bce0428cb0d5f8b6715e4dc7b383eb3"
 dependencies = [
- "const-oid",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.58",
 ]
 
 [[package]]
-name = "digest"
-version = "0.9.0"
+name = "der"
+version = "0.7.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d3dd60d1080a57a05ab032377049e0591415d2b31afd7028356dbf3cc6dcb066"
+checksum = "f55bf8e7b65898637379c1b74eb1551107c8294ed26d855ceb9fd1a09cfc9bc0"
 dependencies = [
- "generic-array",
+ "const-oid",
+ "zeroize",
 ]
 
 [[package]]
@@ -224,35 +194,24 @@ version = "0.10.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8168378f4e5023e7218c89c891c0fd8ecdb5e5e4f18cb78f38cf245dd021e76f"
 dependencies = [
- "block-buffer 0.10.3",
+ "block-buffer",
  "crypto-common",
  "subtle",
 ]
 
-[[package]]
-name = "ecdsa"
-version = "0.13.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d0d69ae62e0ce582d56380743515fefaf1a8c70cec685d9677636d7e30ae9dc9"
-dependencies = [
- "der",
- "elliptic-curve",
- "rfc6979",
- "signature",
-]
-
 [[package]]
 name = "elliptic-curve"
-version = "0.11.12"
+version = "0.13.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "25b477563c2bfed38a3b7a60964c49e058b2510ad3f12ba3483fd8f62c2306d6"
+checksum = "b5e6043086bf7973472e0c7dff2142ea0b680d30e18d9cc40f267efbf222bd47"
 dependencies = [
  "base16ct",
  "crypto-bigint",
- "der",
+ "digest",
  "ff",
  "generic-array",
  "group",
+ "hkdf",
  "rand_core",
  "sec1",
  "subtle",
@@ -261,14 +220,20 @@ dependencies = [
 
 [[package]]
 name = "ff"
-version = "0.11.1"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "131655483be284720a17d74ff97592b8e76576dc25563148601df2d7c9080924"
+checksum = "ded41244b729663b1e574f1b4fb731469f69f79c17667b5d776b16cda0479449"
 dependencies = [
  "rand_core",
  "subtle",
 ]
 
+[[package]]
+name = "fiat-crypto"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c007b1ae3abe1cb6f85a16305acd418b7ca6343b953633fee2b76d8f108b830f"
+
 [[package]]
 name = "generic-array"
 version = "0.14.6"
@@ -277,6 +242,7 @@ checksum = "bff49e947297f3312447abdca79f45f4738097cc82b06e72054d2223f601f1b9"
 dependencies = [
  "typenum",
  "version_check",
+ "zeroize",
 ]
 
 [[package]]
@@ -286,17 +252,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c05aeb6a22b8f62540c194aac980f2115af067bfe15a0734d7277a768d396b31"
 dependencies = [
  "cfg-if",
- "js-sys",
  "libc",
  "wasi",
- "wasm-bindgen",
 ]
 
 [[package]]
 name = "ghash"
-version = "0.4.4"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1583cc1656d7839fd3732b80cf4f38850336cdb9b8ded1cd399ca62958de3c99"
+checksum = "f0d8a4362ccb29cb0b265253fb0a2728f592895ee6854fd9bc13f2ffda266ff1"
 dependencies = [
  "opaque-debug",
  "polyval",
@@ -304,9 +268,9 @@ dependencies = [
 
 [[package]]
 name = "group"
-version = "0.11.0"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc5ac374b108929de78460075f3dc439fa66df9d8fc77e8f12caa5165fcf0c89"
+checksum = "f0f9ef7462f7c099f518d754361858f86d8a07af53ba9af0fe635bbccb151a63"
 dependencies = [
  "ff",
  "rand_core",
@@ -319,17 +283,7 @@ version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "791a029f6b9fc27657f6f188ec6e5e43f6911f6f878e0dc5501396e09809d437"
 dependencies = [
- "hmac 0.12.1",
-]
-
-[[package]]
-name = "hmac"
-version = "0.11.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2a2a2320eb7ec0ebe8da8f744d7812d9fc4cb4d09344ac01898dbcb6a20ae69b"
-dependencies = [
- "crypto-mac",
- "digest 0.9.0",
+ "hmac",
 ]
 
 [[package]]
@@ -338,14 +292,14 @@ version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6c49c37c09c17a53d937dfbb742eb3a961d65a994e6bcdcf37e7399d0cc8ab5e"
 dependencies = [
- "digest 0.10.6",
+ "digest",
 ]
 
 [[package]]
 name = "hpke-rs"
-version = "0.1.0"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c9c8449efb0694b5dd0ee0d7a5582eccce1eb3aeb6c25dc569143ceadc536ca5"
+checksum = "e11bd4ee27b79fa1820e72ef8489cc729c87299ec3f7f52b8fc8dcb87cb2d485"
 dependencies = [
  "hpke-rs-crypto",
  "log",
@@ -354,34 +308,29 @@ dependencies = [
 
 [[package]]
 name = "hpke-rs-crypto"
-version = "0.1.1"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6fdcfe5eed821c92bedc9d05a1e8b4d42a858e5326031086bb5256b778ce9455"
+checksum = "1c3f1ae0a26c18d6469a70db1217136056261c4a244b09a755bc60bd4e055b67"
 dependencies = [
- "getrandom",
- "rand",
- "serde",
- "serde_json",
- "tls_codec",
+ "rand_core",
 ]
 
 [[package]]
 name = "hpke-rs-rust-crypto"
-version = "0.1.1"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8603fbb7674b627cb9f3de6ae5ba8b7e621ef5fdea6489363cb4bef26e5fce52"
+checksum = "a08d4500baf0aced746723d3515d08212bdb9d941df6d1aca3d46d1619b2a1cf"
 dependencies = [
  "aes-gcm",
  "chacha20poly1305",
- "getrandom",
  "hkdf",
  "hpke-rs-crypto",
  "p256",
  "p384",
- "rand",
  "rand_chacha",
- "sha2 0.10.6",
- "x25519-dalek-ng",
+ "rand_core",
+ "sha2",
+ "x25519-dalek",
 ]
 
 [[package]]
@@ -402,25 +351,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bfa799dd5ed20a7e349f3b4639aa80d74549c81716d9ec4f994c9b5815598306"
 
 [[package]]
-name = "itoa"
-version = "1.0.5"
+name = "inout"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fad582f4b9e86b6caa621cabeb0963332d92eea04729ab12892c2533951e6440"
-
-[[package]]
-name = "js-sys"
-version = "0.3.60"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49409df3e3bf0856b916e2ceaca09ee28e6871cf7d9ce97a692cacfdb2a25a47"
+checksum = "a0c10553d664a4d0bcff9f4215d0aac67a639cc68ef660840afe309b807bc9f5"
 dependencies = [
- "wasm-bindgen",
+ "generic-array",
 ]
 
 [[package]]
 name = "libc"
-version = "0.2.139"
+version = "0.2.153"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
+checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"
 
 [[package]]
 name = "lock_api"
@@ -464,24 +407,22 @@ checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
 [[package]]
 name = "p256"
-version = "0.10.1"
+version = "0.13.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19736d80675fbe9fe33426268150b951a3fb8f5cfca2a23a17c85ef3adb24e3b"
+checksum = "c9863ad85fa8f4460f9c48cb909d38a0d689dba1f6f6988a5e3e0d31071bcd4b"
 dependencies = [
- "ecdsa",
  "elliptic-curve",
- "sec1",
- "sha2 0.9.9",
+ "primeorder",
 ]
 
 [[package]]
 name = "p384"
-version = "0.9.0"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "755d8266e41f57bd8562ed9b6e93cdcf73ead050e1e8c3a27ea3871b6643a20c"
+checksum = "70786f51bcc69f6a4c0360e063a4cac5419ef7c5cd5b3c99ad70f3be5ba79209"
 dependencies = [
  "elliptic-curve",
- "sec1",
+ "primeorder",
 ]
 
 [[package]]
@@ -508,21 +449,16 @@ dependencies = [
 ]
 
 [[package]]
-name = "pkcs8"
-version = "0.8.0"
+name = "platforms"
+version = "3.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7cabda3fb821068a9a4fab19a683eac3af12edf0f34b94a8be53c4972b8149d0"
-dependencies = [
- "der",
- "spki",
- "zeroize",
-]
+checksum = "db23d408679286588f4d4644f965003d056e3dd5abcaaa938116871d7ce2fee7"
 
 [[package]]
 name = "poly1305"
-version = "0.7.2"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "048aeb476be11a4b6ca432ca569e375810de9294ae78f4774e78ea98a9246ede"
+checksum = "8159bd90725d2df49889a078b54f4f79e87f1f8a8444194cdca81d38f5393abf"
 dependencies = [
  "cpufeatures",
  "opaque-debug",
@@ -531,9 +467,9 @@ dependencies = [
 
 [[package]]
 name = "polyval"
-version = "0.5.3"
+version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8419d2b623c7c0896ff2d5d96e2cb4ede590fed28fcc34934f4c33c036e620a1"
+checksum = "9d1fe60d06143b2430aa532c94cfe9e29783047f06c0d7fd359a9a51b729fa25"
 dependencies = [
  "cfg-if",
  "cpufeatures",
@@ -547,11 +483,20 @@ version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
 
+[[package]]
+name = "primeorder"
+version = "0.13.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "353e1ca18966c16d9deb1c69278edbc5f194139612772bd9537af60ac231e1e6"
+dependencies = [
+ "elliptic-curve",
+]
+
 [[package]]
 name = "proc-macro2"
-version = "1.0.50"
+version = "1.0.79"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ef7d57beacfaf2d8aee5937dab7b7f28de3cb8b1828479bb5de2a7106f2bae2"
+checksum = "e835ff2298f5721608eb1a980ecaee1aef2c132bf95ecc026a11b7bf3c01c02e"
 dependencies = [
  "unicode-ident",
 ]
@@ -602,7 +547,7 @@ dependencies = [
  "proc-macro2",
  "pyo3-macros-backend",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -613,14 +558,14 @@ checksum = "c8df9be978a2d2f0cdebabb03206ed73b11314701a5bfe71b0d753b81997777f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.23"
+version = "1.0.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8856d8364d252a14d474036ea1358d63c9e6965c8e5c1885c18f73d70bff9c7b"
+checksum = "291ec9ab5efd934aaf503a6466c5d5251535d108ee747472c3977cc5acc868ef"
 dependencies = [
  "proc-macro2",
 ]
@@ -665,22 +610,14 @@ dependencies = [
 ]
 
 [[package]]
-name = "rfc6979"
-version = "0.1.0"
+name = "rustc_version"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "96ef608575f6392792f9ecf7890c00086591d29a83910939d430753f7c050525"
+checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
 dependencies = [
- "crypto-bigint",
- "hmac 0.11.0",
- "zeroize",
+ "semver",
 ]
 
-[[package]]
-name = "ryu"
-version = "1.0.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b4b9743ed687d4b4bcedf9ff5eaa7398495ae14e61cba0a295704edbc7decde"
-
 [[package]]
 name = "scopeguard"
 version = "1.1.0"
@@ -689,17 +626,23 @@ checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
 [[package]]
 name = "sec1"
-version = "0.2.1"
+version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08da66b8b0965a5555b6bd6639e68ccba85e1e2506f5fbb089e93f8a04e1a2d1"
+checksum = "48518a2b5775ba8ca5b46596aae011caa431e6ce7e4a67ead66d92f08884220e"
 dependencies = [
+ "base16ct",
  "der",
  "generic-array",
- "pkcs8",
  "subtle",
  "zeroize",
 ]
 
+[[package]]
+name = "semver"
+version = "1.0.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "92d43fe69e652f3df9bdc2b85b2854a0825b86e4fb76bc44d945137d053639ca"
+
 [[package]]
 name = "serde"
 version = "1.0.152"
@@ -717,31 +660,7 @@ checksum = "af487d118eecd09402d70a5d72551860e788df87b464af30e5ea6a38c75c541e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
-]
-
-[[package]]
-name = "serde_json"
-version = "1.0.91"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "877c235533714907a8c2464236f5c4b2a17262ef1bd71f38f35ea592c8da6883"
-dependencies = [
- "itoa",
- "ryu",
- "serde",
-]
-
-[[package]]
-name = "sha2"
-version = "0.9.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4d58a1e1bf39749807d89cf2d98ac2dfa0ff1cb3faa38fbb64dd88ac8013d800"
-dependencies = [
- "block-buffer 0.9.0",
- "cfg-if",
- "cpufeatures",
- "digest 0.9.0",
- "opaque-debug",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -752,17 +671,7 @@ checksum = "82e6b795fe2e3b1e845bafcb27aa35405c4d47cdfc92af5fc8d3002f76cebdc0"
 dependencies = [
  "cfg-if",
  "cpufeatures",
- "digest 0.10.6",
-]
-
-[[package]]
-name = "signature"
-version = "1.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02658e48d89f2bec991f9a78e69cfa4c316f8d6a6c4ec12fae1aeb263d486788"
-dependencies = [
- "digest 0.9.0",
- "rand_core",
+ "digest",
 ]
 
 [[package]]
@@ -771,16 +680,6 @@ version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
 
-[[package]]
-name = "spki"
-version = "0.5.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "44d01ac02a6ccf3e07db148d2be087da624fea0221a16152ed01f0496a6b0a27"
-dependencies = [
- "base64ct",
- "der",
-]
-
 [[package]]
 name = "subtle"
 version = "2.4.1"
@@ -788,16 +687,21 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"
 
 [[package]]
-name = "subtle-ng"
-version = "2.5.0"
+name = "syn"
+version = "1.0.107"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "734676eb262c623cec13c3155096e08d1f8f29adce39ba17948b18dad1e54142"
+checksum = "1f4064b5b16e03ae50984a5a8ed5d4f8803e6bc1fd170a3cda91a1be4b18e3f5"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
 
 [[package]]
 name = "syn"
-version = "1.0.107"
+version = "2.0.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1f4064b5b16e03ae50984a5a8ed5d4f8803e6bc1fd170a3cda91a1be4b18e3f5"
+checksum = "44cfb93f38070beee36b3fef7d4f5a16f27751d94b187b666a5cc5e9b0d30687"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -812,7 +716,7 @@ checksum = "f36bdaa60a83aca3921b5259d5400cbf5e90fc51931376a9bd4a0eb79aa7210f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
  "unicode-xid",
 ]
 
@@ -822,27 +726,6 @@ version = "0.12.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9410d0f6853b1d94f0e519fb95df60f29d2c1eff2d921ffdf01a4c8a3b54f12d"
 
-[[package]]
-name = "tls_codec"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "172a9c24d46b5fe280b77f37161ed9a919229cb104085384e8bf30637c2e4bca"
-dependencies = [
- "tls_codec_derive",
- "zeroize",
-]
-
-[[package]]
-name = "tls_codec_derive"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a787719c86efec1535b071bde678f5fd649380e8005cd1ebd0afeb4bcc4d2a85"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "typenum"
 version = "1.16.0"
@@ -869,11 +752,11 @@ checksum = "e1766d682d402817b5ac4490b3c3002d91dfa0d22812f341609f97b08757359c"
 
 [[package]]
 name = "universal-hash"
-version = "0.4.1"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9f214e8f697e925001e66ec2c6e37a4ef93f0f78c2eed7814394e10c62025b05"
+checksum = "fc1de2c688dc15305988b563c3854064043356019f97a4b46276fe734c4f07ea"
 dependencies = [
- "generic-array",
+ "crypto-common",
  "subtle",
 ]
 
@@ -889,60 +772,6 @@ version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
-[[package]]
-name = "wasm-bindgen"
-version = "0.2.83"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eaf9f5aceeec8be17c128b2e93e031fb8a4d469bb9c4ae2d7dc1888b26887268"
-dependencies = [
- "cfg-if",
- "wasm-bindgen-macro",
-]
-
-[[package]]
-name = "wasm-bindgen-backend"
-version = "0.2.83"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c8ffb332579b0557b52d268b91feab8df3615f265d5270fec2a8c95b17c1142"
-dependencies = [
- "bumpalo",
- "log",
- "once_cell",
- "proc-macro2",
- "quote",
- "syn",
- "wasm-bindgen-shared",
-]
-
-[[package]]
-name = "wasm-bindgen-macro"
-version = "0.2.83"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "052be0f94026e6cbc75cdefc9bae13fd6052cdcaf532fa6c45e7ae33a1e6c810"
-dependencies = [
- "quote",
- "wasm-bindgen-macro-support",
-]
-
-[[package]]
-name = "wasm-bindgen-macro-support"
-version = "0.2.83"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07bc0c051dc5f23e307b13285f9d75df86bfdf816c5721e573dec1f9b8aa193c"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
- "wasm-bindgen-backend",
- "wasm-bindgen-shared",
-]
-
-[[package]]
-name = "wasm-bindgen-shared"
-version = "0.2.83"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1c38c045535d93ec4f0b4defec448e4291638ee608530863b1e2ba115d4fff7f"
-
 [[package]]
 name = "windows-sys"
 version = "0.42.0"
@@ -1001,22 +830,22 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "447660ad36a13288b1db4d4248e857b510e8c3a225c822ba4fb748c0aafecffd"
 
 [[package]]
-name = "x25519-dalek-ng"
-version = "1.1.1"
+name = "x25519-dalek"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf7074de8999662970c3c4c8f7f30925028dd8f4ca31ad4c055efa9cdf2ec326"
+checksum = "c7e468321c81fb07fa7f4c636c3972b9100f0346e5b6a9f2bd0603a52f7ed277"
 dependencies = [
- "curve25519-dalek-ng",
- "rand",
+ "curve25519-dalek",
  "rand_core",
+ "serde",
  "zeroize",
 ]
 
 [[package]]
 name = "zeroize"
-version = "1.5.7"
+version = "1.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c394b5bd0c6f669e7275d9c20aa90ae064cb22e75a1cad54e1b34088034b149f"
+checksum = "525b4ec142c6b68a2d10f01f7bbf6755599ca3f81ea53b8431b7dd348f5fdb2d"
 dependencies = [
  "zeroize_derive",
 ]
@@ -1029,6 +858,6 @@ checksum = "44bf07cb3e50ea2003396695d58bf46bc9887a1f362260446fad6bc4e79bd36c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
  "synstructure",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 116072d..8d3d9dc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,8 +10,8 @@ name = "hybrid_pke"
 crate-type = ["cdylib"]
 
 [dependencies]
-hpke-rs = { version = "0.1.0", features = ["hazmat"] }
-hpke-rs-crypto = { version = "0.1.1" }
-hpke-rs-rust-crypto = { version = "0.1.1" }
+hpke-rs = { version = "0.2", features = ["hazmat"] }
+hpke-rs-crypto = { version = "0.2" }
+hpke-rs-rust-crypto = { version = "0.2" }
 pyo3 = { version = "0.17", features = ["extension-module"] }
 rand = { version =  "0.8" }
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 49bf147..9473668 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,5 +1,5 @@
 #
-# This file is autogenerated by pip-compile with Python 3.10
+# This file is autogenerated by pip-compile with Python 3.12
 # by the following command:
 #
 #    make pydep-upgrade
@@ -14,8 +14,6 @@ black==22.6.0
     #   flake8-black
 click==8.1.3
     # via black
-exceptiongroup==1.1.0
-    # via pytest
 execnet==1.9.0
     # via pytest-xdist
 flake8==5.0.4
@@ -60,8 +58,4 @@ pytest==7.2.0
 pytest-xdist==3.1.0
     # via -r requirements-dev.in
 tomli==2.0.1
-    # via
-    #   black
-    #   flake8-black
-    #   maturin
-    #   pytest
+    # via flake8-black
diff --git a/src/errors.rs b/src/errors.rs
index bffc36a..fbcb998 100644
--- a/src/errors.rs
+++ b/src/errors.rs
@@ -89,6 +89,5 @@ pub(crate) fn handle_hpke_error(e: HpkeError) -> PyErr {
         HpkeError::InsufficientRandomness => {
             InsufficientRandomness::new_err("Unable to collect enough randomness.")
         }
-        HpkeError::LockPoisoned => LockPoisoned::new_err("A concurrency issue with an RwLock."),
     }
 }
diff --git a/src/hpke.rs b/src/hpke.rs
index 4e12eb5..837315e 100644
--- a/src/hpke.rs
+++ b/src/hpke.rs
@@ -54,7 +54,7 @@ impl PyHpke {
     /// Set up an HPKE sender context
     #[args(psk = "None", psk_id = "None", sk_s = "None")]
     fn setup_sender<'p>(
-        &self,
+        &mut self,
         py: Python<'p>,
         pk_r: &PyBytes,
         info: &PyBytes,
@@ -62,7 +62,7 @@ impl PyHpke {
         psk_id: Option<&PyBytes>,
         sk_s: Option<&PyBytes>,
     ) -> PyResult<(&'p PyBytes, PyContext)> {
-        let cfg = &self.hpke;
+        let cfg = &mut self.hpke;
 
         // convert args, drop py refs
         let pk_r = HpkePublicKey::new(pk_r.as_bytes().into());
@@ -121,7 +121,7 @@ impl PyHpke {
     #[allow(clippy::too_many_arguments)]
     #[args(psk = "None", psk_id = "None", sk_s = "None")]
     fn seal<'p>(
-        &self,
+        &mut self,
         py: Python<'p>,
         pk_r: &PyBytes,
         info: &PyBytes,
@@ -131,7 +131,7 @@ impl PyHpke {
         psk_id: Option<&PyBytes>,
         sk_s: Option<&PyBytes>,
     ) -> PyResult<(&'p PyBytes, &'p PyBytes)> {
-        let cfg = &self.hpke;
+        let cfg = &mut self.hpke;
 
         // convert args, drop py refs
         let pk_r = HpkePublicKey::new(pk_r.as_bytes().into());
@@ -205,7 +205,7 @@ impl PyHpke {
     #[allow(clippy::too_many_arguments)]
     #[args(psk = "None", psk_id = "None", sk_s = "None")]
     fn send_export<'p>(
-        &self,
+        &mut self,
         py: Python<'p>,
         pk_r: &PyBytes,
         info: &PyBytes,
@@ -215,7 +215,7 @@ impl PyHpke {
         psk_id: Option<&PyBytes>,
         sk_s: Option<&PyBytes>,
     ) -> PyResult<(&'p PyBytes, &'p PyBytes)> {
-        let cfg = &self.hpke;
+        let cfg = &mut self.hpke;
 
         // convert args, drop py refs
         let pk_r = HpkePublicKey::new(pk_r.as_bytes().into());
@@ -333,8 +333,8 @@ impl PyHpke {
     }
 
     /// Generate a key-pair according to the KemAlgorithm in this Hpke config
-    fn generate_key_pair<'p>(&self, py: Python<'p>) -> PyResult<(&'p PyBytes, &'p PyBytes)> {
-        let cfg = &self.hpke;
+    fn generate_key_pair<'p>(&mut self, py: Python<'p>) -> PyResult<(&'p PyBytes, &'p PyBytes)> {
+        let cfg = &mut self.hpke;
         let keypair = cfg.generate_key_pair().map_err(handle_hpke_error)?;
         let (sk, pk) = keypair.into_keys();
         let sk_py = PyBytes::new(py, sk.as_slice());