chore: fix typos

Signed-off-by: Phillip Davis <phil@jankaritech.com>

hooks/timestamping

@@ -271,10 +271,10 @@ get_tsa_cert_id() {
 # function to extract hashing algorithm used in the ESSCertID (always sha1) or ESSCertIDv2
 # param1: path to token in DER encoding
 # param2: OUT variable, the hashing algorithm string
-get_cert_id_hash_agorithm() {
+get_cert_id_hash_algorithm() {
   local TOKEN_FILE="$1"
   local -n ALGO_NAME_OUT="$2"
-  log "get_cert_id_hash_agorithm for $TOKEN_FILE"
+  log "get_cert_id_hash_algorithm for $TOKEN_FILE"
 
   #perform precondition checks
   assert "[ ! -z $TOKEN_FILE ]" "Precondition: Path to token file must not be empty."
@@ -401,7 +401,7 @@ request_token() {
 # param2: the digest the token was requested for
 # param3: the tsa url from which the token was requested
 # param4: the output file for the chain. It contains all certificates in order, with the first
-#         one being the TSA cetificate and the last one the self-signed root certificate.
+#         one being the TSA certificate and the last one the self-signed root certificate.
 build_certificate_chain_for_token() {
   local TOKEN_FILE="$1"
   local DIGEST="$2"
@@ -417,18 +417,18 @@ build_certificate_chain_for_token() {
   local DUMMY_TOKEN="$TMP_DIR"/dummy_token.tst
   local ALL_EXTRACTED_CERTS="$TMP_DIR"/extracted_certs.pem
   local CHAIN=()
-  #if the TSA uses multiple certificates to sign tokens it may take a few attempts to get one containint the proper signer
+  #if the TSA uses multiple certificates to sign tokens it may take a few attempts to get one containing the proper signer
   #TODO: allow to set maximum retry attempts
   local SIGNING_CERT_ID=""
   get_tsa_cert_id "$TOKEN_FILE" SIGNING_CERT_ID
   local CERT_ID_HASH_ALGO=""
-  get_cert_id_hash_agorithm "$TOKEN_FILE" CERT_ID_HASH_ALGO
+  get_cert_id_hash_algorithm "$TOKEN_FILE" CERT_ID_HASH_ALGO
   local -i i
   for i in {1..10} ;do
     #request dummy token. Use current commit digest
     request_token "$TSA_URL" "$DIGEST" true "$DUMMY_TOKEN"
 
-    #extract certifcates
+    #extract certificates
     openssl pkcs7 -inform DER -in "$DUMMY_TOKEN" -print_certs -outform PEM -out "$ALL_EXTRACTED_CERTS" &> "$OUT_STREAM"
 
     #remove files from previous runs
@@ -440,7 +440,7 @@ build_certificate_chain_for_token() {
     | awk '/-----BEGIN CERTIFICATE-----/ { i++; } /-----BEGIN CERTIFICATE-----/, /-----END CERTIFICATE-----/ \
     { print > tmpdir i ".extracted.pem.cer" }' tmpdir="$TMP_DIR/"
 
-    #find cetificate that signed token
+    #find certificate that signed token
     local EXTRACTED_CERT
     while read EXTRACTED_CERT; do
       local CERT_ID=$(openssl x509 -inform PEM -in "$EXTRACTED_CERT" -outform DER | openssl dgst -"$CERT_ID_HASH_ALGO" -binary | xxd -p -c 256)