diff --git a/README.md b/README.md
index 2e516bd..8ff5ef7 100644
--- a/README.md
+++ b/README.md
@@ -51,24 +51,24 @@ Also see <https://en.wikipedia.org/wiki/Hexspeak> for some further examples of "
 ### How long does it take?
 
 On my machine with an AMD Ryzen 7 5800X processor, Fingerprunk is able to generate and check about
-43300 keys per second. This means that for finding a fingerprint with a string of *n* specific
+41000 keys per second. This means that for finding a fingerprint with a string of *n* specific
 hexadecimal digits at a specific place, I could expect the following runtimes until finding the
 first key:
 
-| *n* |  expected tries | expected time |
-| --: | --------------: | ------------: |
-| *n* |             16ⁿ |  43300s / 16ⁿ |
-|   2 |             256 |   0.0059 secs |
-|   3 |            4096 |   0.0946 secs |
-|   4 |           65536 |      1.5 secs |
-|   5 |         1028576 |       24 secs |
-|   6 |        16777216 |      6.5 mins |
-|   7 |       268435456 |      103 mins |
-|   8 |      4294967296 |      27 hours |
-|   9 |     68719476736 |       18 days |
-|  10 |   1099511627776 |      293 days |
-|  11 |  17592186044416 |      13 years |
-|  12 | 281474976710656 |     206 years |
+| *n* |         estimate tries | estimate time |
+| --: | ---------------------: | ------------: |
+|   1 |              16 =  16¹ |    < 0.1 secs |
+|   2 |             256 =  16² |    < 0.1 secs |
+|   3 |            4096 =  16³ |      0.1 secs |
+|   4 |           65536 =  16⁴ |      1.6 secs |
+|   5 |         1048576 =  16⁵ |       26 secs |
+|   6 |        16777216 =  16⁶ |        7 mins |
+|   7 |       268435456 =  16⁷ |       2 hours |
+|   8 |      4294967296 =  16⁸ |        1 days |
+|   9 |     68719476736 =  16⁹ |       19 days |
+|  10 |   1099511627776 = 16¹⁰ |      310 days |
+|  11 |  17592186044416 = 16¹¹ |      14 years |
+|  12 | 281474976710656 = 16¹² |     218 years |
 
-As you can see, anything above 8 or 9 fixed digits is pretty much unfeasible, at least with
-a normal personal computer.
\ No newline at end of file
+As you can see, anything above 10 fixed digits is pretty much unfeasible, at least with a normal
+personal computer.
\ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
index 94371d5..98239f4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -22,7 +22,7 @@ use sequoia_openpgp::{
         prelude::SignatureBuilder,
     },
     serialize::Serialize,
-    types::{HashAlgorithm, SignatureType, SymmetricAlgorithm},
+    types::{Curve, HashAlgorithm, SignatureType, SymmetricAlgorithm},
 };
 
 type SecretKey = Key<SecretParts, PrimaryRole>;
@@ -92,7 +92,8 @@ impl Fingerprunk {
         let mut fingerprint_hex = String::with_capacity(20 * 2);
 
         loop {
-            let key = Key4::generate_ed25519().expect("should be able to generate key");
+            let key =
+                Key4::generate_ecc(true, Curve::Ed25519).expect("should be able to generate key");
             fingerprint_hex.clear();
             write!(fingerprint_hex, "{:X}", key.fingerprint())
                 .expect("should write into string without error");