4 files changed, 10 insertions, 10 deletions
diff --git a/src/include/taler_crypto_lib.h b/src/include/taler_crypto_lib.h
index 5b32dd5c..3d6c20b6 100644
--- a/src/include/taler_crypto_lib.h
+++ b/src/include/taler_crypto_lib.h
@@ -1762,7 +1762,7 @@ TALER_test_coin_valid (const struct TALER_CoinPublicInfo *coin_public_info,
  * @param blinded_planchet blinded planchet
  * @param denom_hash hash of the denomination publick key
  * @param[out] bch where to write the hash
- * @return #GNUNET_OK when successful, #GNUNET_SYSERR if an internal error occured
+ * @return #GNUNET_OK when successful, #GNUNET_SYSERR if an internal error occurred
  */
 enum GNUNET_GenericReturnValue
 TALER_coin_ev_hash (const struct TALER_BlindedPlanchet *blinded_planchet,
@@ -5120,7 +5120,7 @@ TALER_age_commitment_hash (
  *
  * @param mask The age mask the defines the age groups
  * @param age The actual age for which an age commitment is generated
- * @param seed The seed that goes into the key generation.  MUST be choosen uniformly random.
+ * @param seed The seed that goes into the key generation.  MUST be chosen uniformly random.
  * @param[out] comm_proof The generated age commitment, ->priv and ->pub allocated via GNUNET_malloc() on success
  * @return #GNUNET_OK on success, #GNUNET_SYSERR otherwise
  */
@@ -5168,7 +5168,7 @@ TALER_age_commitment_attest (
  * @param commitment The age commitment that went into the attestation.  Only the public keys are needed.
  * @param age Age (not age group) for which the an attestation should be done
  * @param attest Signature of the age with the appropriate key from the age commitment for the corresponding age group, if applicaple.
- * @return #GNUNET_OK when the attestation was successfull, GNUNET_NO no attestation couldn't be verified, #GNUNET_SYSERR otherwise
+ * @return #GNUNET_OK when the attestation was successful, #GNUNET_NO no attestation couldn't be verified, #GNUNET_SYSERR otherwise
  */
 enum GNUNET_GenericReturnValue
 TALER_age_commitment_verify (
diff --git a/src/include/taler_exchangedb_plugin.h b/src/include/taler_exchangedb_plugin.h
index 6cb9a3a4..42a6795f 100644
--- a/src/include/taler_exchangedb_plugin.h
+++ b/src/include/taler_exchangedb_plugin.h
@@ -1420,7 +1420,7 @@ struct TALER_EXCHANGEDB_DepositListEntry
   struct TALER_DenominationHashP h_denom_pub;
 
   /**
-   * Age commitment hash, if applicable ot the denomination.  Should be all
+   * Age commitment hash, if applicable to the denomination.  Should be all
    * zeroes if age commitment is not applicable to the denonimation.
    */
   struct TALER_AgeCommitmentHash h_age_commitment;
@@ -5235,7 +5235,7 @@ struct TALER_EXCHANGEDB_Plugin
 
 
   /**
-   * Function called to reutrn meta data about a purse by the
+   * Function called to return meta data about a purse by the
    * purse public key.
    *
    * @param cls the @e cls of this struct with the plugin-specific state
diff --git a/src/include/taler_extensions.h b/src/include/taler_extensions.h
index 32821e50..82392a3e 100644
--- a/src/include/taler_extensions.h
+++ b/src/include/taler_extensions.h
@@ -99,8 +99,8 @@ TALER_extensions_is_json_config (
  * he JSON object must be of type ExchangeKeysResponse as described in
  * https://docs.taler.net/design-documents/006-extensions.html#exchange
  *
- * @param cfg JSON object containting the configuration for all extensions
- * @return GNUNET_OK on success, GNUNET_SYSERR if unknown extensions were found
+ * @param cfg JSON object containing the configuration for all extensions
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR if unknown extensions were found
  *         or any particular configuration couldn't be parsed.
  */
 enum GNUNET_GenericReturnValue
@@ -267,7 +267,7 @@ TALER_extensions_age_restriction_num_groups ();
  * Parses a JSON object { "age_groups": "a:b:...y:z" }.
  *
  * @param root is the json object
- * @param[out] mask on succes, will contain the age mask
+ * @param[out] mask on success, will contain the age mask
  * @return #GNUNET_OK on success and #GNUNET_SYSERR on failure.
  */
 enum GNUNET_GenericReturnValue
diff --git a/src/include/taler_util.h b/src/include/taler_util.h
index e5c7b97b..afc8ebad 100644
--- a/src/include/taler_util.h
+++ b/src/include/taler_util.h
@@ -494,12 +494,12 @@ TALER_yna_to_string (enum TALER_EXCHANGE_YesNoAll yna);
 
 #ifdef __APPLE__
 /**
- * Returns the first occurence of `c` in `s`, or returns the null-byte
+ * Returns the first occurrence of `c` in `s`, or returns the null-byte
  * terminating the string if it does not occur.
  *
  * @param s the string to search in
  * @param c the character to search for
- * @return char* the first occurence of `c` in `s`
+ * @return char* the first occurrence of `c` in `s`
  */
 char *strchrnul (const char *s, int c);